Update and add links for Chat API refs and add meta_descriptions

Author: m-hulbert

src/pages/docs/chat/api/javascript/auth.mdx

@@ -1,9 +1,9 @@
 ---
 title: Authentication
-meta_description: ""
+meta_description: "Ably Chat JavaScript API references for authentication."
 ---
 
-The [ChatClient](/docs/chat/api/javascript/chat-client) requires a realtime client generated by the core [Pub/Sub SDK](LINK) to establish a connection with Ably. This realtime client is used to handle authentication with Ably.
+The [ChatClient](/docs/chat/api/javascript/chat-client) requires a realtime client generated by the core [Pub/Sub SDK](/docs/basics) to establish a connection with Ably. This realtime client is used to handle authentication with Ably.
 
 There are broadly three mechanisms of authentication with Ably:
 

src/pages/docs/chat/api/javascript/chat-client.mdx

@@ -1,6 +1,6 @@
 ---
 title: ChatClient
-meta_description: ""
+meta_description: "Ably Chat JavaScript API references for the ChatClient constructor."
 ---
 
 The `ChatClient` class is the core client for Ably Chat.
@@ -33,7 +33,7 @@ Use the following parameters:
 
 | Parameter | Description | Type |
 | --------- | ----------- | ---- |
-| `realtime` | The Ably Realtime client. | [`Realtime`](https://sdk.ably.com/builds/ably/ably-js/main/typedoc/) |
+| `realtime` | The Ably Realtime client. | [`Realtime`](#realtime) |
 | `clientOptions` | *Optional* The client options. | [`ChatClientOptions`](#chatclientoptions) |
 
 #### ChatClientOptions
@@ -102,7 +102,7 @@ const chatClient = new ChatClient(realtimeClient, {
 
 ## Realtime
 
-The Chat constructor requires a realtime client generated using the core [Pub/Sub SDK]() to establish a connection with Ably. The realtime client handles [authentication](/docs/chat/api/javascript/auth) with Ably.
+The Chat constructor requires a realtime client generated using the core [Pub/Sub SDK](/docs/basics) to establish a connection with Ably. The realtime client handles [authentication](/docs/chat/api/javascript/auth) with Ably.
 
 `new Ably.Realtime(ClientOptions clientOptions)`
 

src/pages/docs/chat/api/javascript/connection.mdx

@@ -1,6 +1,6 @@
 ---
 title: Connection
-meta_description: ""
+meta_description: "Ably Chat JavaScript API references for the Connection interface."
 ---
 
 The `Connection` interface represents a connection to Ably.

src/pages/docs/chat/api/javascript/error-info.mdx

@@ -1,6 +1,6 @@
 ---
 title: ErrorInfo
-meta_description: ""
+meta_description: "Ably Chat JavaScript API references for the ErrorInfo class."
 ---
 
 The `ErrorInfo` class is a generic Ably error object that contains an Ably-specific status code, and a generic status code. Errors returned from the Ably server are compatible with the `ErrorInfo` structure and should result in errors that inherit from `ErrorInfo`.

src/pages/docs/chat/api/javascript/message.mdx

@@ -1,6 +1,6 @@
 ---
 title: Message
-meta_description: ""
+meta_description: "Ably Chat JavaScript API references for the Message interface."
 ---
 
 The `Message` interface represents a single message in a chat room.
@@ -114,7 +114,7 @@ Use the following parameters:
 
 | Parameter | Description | Type |
 | --------- | ----------- | ---- |
-| `message` | The message to compare against. | [`Message`](#message) |
+| `message` | The message to compare against. | `Message` |
 
 ### Returns
 
@@ -144,7 +144,7 @@ Use the following parameters:
 
 | Parameter | Description | Type |
 | --------- | ----------- | ---- |
-| `message` | The message to compare against. | [`Message`](#message) |
+| `message` | The message to compare against. | `Message` |
 
 ### Returns
 
@@ -176,7 +176,7 @@ Use the following parameters:
 
 | Parameter | Description | Type |
 | --------- | ----------- | ---- |
-| `message` | The message to compare against. | [`Message`](#message) |
+| `message` | The message to compare against. | `Message` |
 
 ### Returns
 
@@ -192,7 +192,7 @@ const isEqual = message1.equal(message2);
 
 `message.isSameAs()`
 
-Alias for [`message.equal()`](LINK).
+Alias for [`message.equal()`](#equal).
 
 `isSameAs(message: Message): boolean`
 
@@ -212,7 +212,7 @@ Use the following parameters:
 
 | Parameter | Description | Type |
 | --------- | ----------- | ---- |
-| `message` | The message to compare against. | [`Message`](#message) |
+| `message` | The message to compare against. | `Message` |
 
 ### Returns
 
@@ -240,7 +240,7 @@ Use the following parameters:
 
 | Parameter | Description | Type |
 | --------- | ----------- | ---- |
-| `message` | The message to compare against. | [`Message`](#message) |
+| `message` | The message to compare against. | `Message` |
 
 ### Returns
 
@@ -266,7 +266,7 @@ Use the following parameters:
 
 | Parameter | Description | Type |
 | --------- | ----------- | ---- |
-| `message` | The message to compare against. | [`Message`](#message) |
+| `message` | The message to compare against. | `Message` |
 
 ### Returns
 
@@ -330,7 +330,7 @@ Use the following parameters:
 
 | Parameter | Description | Type |
 | --------- | ----------- | ---- |
-| `event` | The event to be applied to the returned message. | [`Message`](#message) \| [`ChatMessageEvent`](#chatmessageevent) \| [`MessageReactionSummaryEvent`](#messagereactionsummaryevent) |
+| `event` | The event to be applied to the returned message. | `Message` \| [`ChatMessageEvent`](#chatmessageevent) \| [`MessageReactionSummaryEvent`](#messagereactionsummaryevent) |
 
 #### ChatMessageEvent
 
@@ -341,7 +341,7 @@ It has the following properties:
 | Properties | Description | Type |
 | ---------- | ----------- | ---- |
 | `type` | The type of the message event. | [`ChatMessageEventType`](#chatmessageeventtype) |
-| `data` | The message data. | [`Message`](#message) |
+| `data` | The message data. | `Message` |
 
 #### ChatMessageEventType
 

src/pages/docs/chat/api/javascript/messages-reactions.mdx

@@ -1,6 +1,6 @@
 ---
 title: MessagesReactions
-meta_description: ""
+meta_description: "Ably Chat JavaScript API references for the MessageReactions interface."
 ---
 
 The `MessagesReactions` interface is used to add, delete, and subscribe to reactions on individual messages.

src/pages/docs/chat/api/javascript/messages.mdx

@@ -1,6 +1,6 @@
 ---
 title: Messages
-meta_description: ""
+meta_description: "Ably Chat JavaScript API references for the Messages interface."
 ---
 
 The `Messages` interface is used to send and subscribe to messages in a chat room.
@@ -47,13 +47,13 @@ The following `SendMessageParams` can be set:
 | `metadata` | *Optional* Metadata to attach to the message. Allows for attaching extra info to a message, which can be used for various features such as animations, effects, or simply to link it to other resources such as images, relative points in time, etc. This value is always set on received messages. If there is no metadata, this is an empty object. Do not use metadata for authoritative information. There is no server-side validation. When reading the metadata, treat it like user input. | [`MessageMetadata`](#messagemetadata) |
 | `headers` | *Optional* Headers to attach to the message. Headers enable attaching extra info to a message, which can be used for various features such as linking to a relative point in time of a livestream video or flagging this message as important or pinned. This value is always set on received messages. If there are no headers, this is an empty object. Do not use the headers for authoritative information. There is no server-side validation. When reading the headers, treat them like user input. | [`MessageHeaders`](#messageheaders) |
 
-#### MessageMetadata <a id="messagemetadata"/>
+#### MessageMetadata
 
 Metadata enables attaching extra info to a message. Uses include animations, effects, or simply to link it to other resources such as images or relative points in time.
 
 `MessageMetadata: Record<string, unknown>`
 
-#### MessageHeaders <a id="messageheaders"/>
+#### MessageHeaders
 
 Headers enable attaching extra info to a message. Uses include linking to a relative point in time of a livestream video or flagging this message as important or pinned.
 
@@ -81,7 +81,7 @@ const message = await room.messages.send({
 
 Update a message in the chat room.
 
-Note that the Promise may resolve before or after the updated message is received from the room. This means you may see the update that was just sent in a callback to `subscribe()` before the returned promise resolves.
+Note that the promise may resolve before or after the updated message is received from the room. This means you may see the update that was just sent in a callback to `subscribe()` before the returned promise resolves.
 
 The [`Message`](/docs/chat/api/javascript/message) instance returned by this method is the state of the message as a result of the update operation. If you have a subscription to message events via `subscribe()`, you should discard the message instance returned by this method and use the event payloads from the subscription instead.
 
@@ -165,7 +165,7 @@ Delete a message in the chat room.
 
 This method performs a 'soft' delete, meaning the message is marked as deleted.
 
-Note that the Promise may resolve before or after the message is deleted from the realtime channel. This means you may see the message that was just deleted in a callback to `subscribe` before the returned promise resolves.
+Note that the promise may resolve before or after the message is deleted from the realtime channel. This means you may see the message that was just deleted in a callback to `subscribe` before the returned promise resolves.
 
 The [`Message`](/docs/chat/api/javascript/message) instance returned by this method is the state of the message as a result of the delete operation. If you have a subscription to message events via `subscribe()`, you should discard the message instance returned by this method and use the event payloads from the subscription instead.
 
@@ -215,7 +215,7 @@ const deletedMessage = await room.messages.delete(
 
 Get messages that have been previously sent to the chat room, based on the provided options.
 
-Note that the [`historyBeforeSubscribe()`](#historybeforesubscribe) method enables clients to retrieve messages in a continuous manner when they first subscribe to a room, or rejoin after a period of disconnection.
+Note that the [`historyBeforeSubscribe()`](#historyBeforeSubscribe) method enables clients to retrieve messages in a continuous manner when they first subscribe to a room, or rejoin after a period of disconnection.
 
 `history(options: QueryOptions): Promise<PaginatedResult<Message>>`
 

src/pages/docs/chat/api/javascript/occupancy.mdx

@@ -1,6 +1,6 @@
 ---
 title: Occupancy
-meta_description: ""
+meta_description: "Ably Chat JavaScript API references for the Occupancy interface."
 ---
 
 The `Occupancy` interface is used to subscribe to occupancy updates and fetch the occupancy metrics of a room.

src/pages/docs/chat/api/javascript/presence.mdx

@@ -1,6 +1,6 @@
 ---
 title: Presence
-meta_description: ""
+meta_description: "Ably Chat JavaScript API references for the Presence interface."
 ---
 
 The `Presence` interface is used to enter and subscribe to the presence set of a chat room.
@@ -47,7 +47,7 @@ await room.presence.enter({status: 'online', activity: 'viewing'});
 
 `room.presence.update()`
 
-Updates a client's presence `data`. Will emit an `update` event to all subscribers. If the client is not already in the presence set, it will be treated as an [`enter`](LINK) event.
+Updates a client's presence `data`. Will emit an `update` event to all subscribers. If the client is not already in the presence set, it will be treated as an [`enter`](#enter) event.
 
 `update(data?: unknown): Promise<void>`
 
@@ -202,7 +202,7 @@ if (isPresent) {
 
 Subscribe the provided listener to a list of presence events.
 
-Note: This requires presence events to be enabled via the `enableEvents` option in the [`PresenceOptions`](LINK) provided to the room. If this is not enabled, an error will be thrown.
+Note: This requires presence events to be enabled via the `enableEvents` option in the [`PresenceOptions`](/docs/chat/api/javascript/rooms#PresenceOptions) provided to the room. If this is not enabled, an error will be thrown.
 
 `subscribe(eventOrEvents: PresenceEventType | PresenceEventType[], listener?: PresenceListener): Subscription`
 

src/pages/docs/chat/api/javascript/room-reactions.mdx

@@ -1,6 +1,6 @@
 ---
 title: RoomReactions
-meta_description: ""
+meta_description: "Ably Chat JavaScript API references for the RoomReactions interface."
 ---
 
 The `RoomReactions` interface is used to send and subscribe to ephemeral, room-level reactions.