Add aria-labels to improve accessibility across UI components

package.json

@@ -1,6 +1,6 @@
 {
   "name": "json-schema-studio",
-  "version": "0.5.11-beta",
+  "version": "0.5.12-beta",
   "type": "module",
   "homepage": "studio.ioflux.org",
   "repository": "https://github.com/ioflux-org/studio-json-schema",

src/components/FullscreenToggleButton.tsx

@@ -7,6 +7,7 @@ const FullscreenToggleButton = () => {
 
   return (
     <button
+      aria-label="Toggle fullscreen"
       onClick={toggleFullScreen}
       className="cursor-pointer"
       style={{ color: "var(--navigation-text-color)" }}

src/components/GraphView.tsx

@@ -405,6 +405,7 @@ const GraphView = ({
             {errorMessage}
           </div>
           <button
+            aria-label="Close error message"
             className="cursor-pointer"
             onClick={() => setShowErrorPopup(false)}
           >
@@ -418,13 +419,15 @@ const GraphView = ({
             type="text"
             maxLength={30}
             placeholder="search node"
+            aria-label="Search node"
             className="outline-none text-[var(--text-color)] border-b-2 border-[var(--text-color)] text-center w-[150px] pr-5"
             value={searchString}
             onChange={handleChange}
           />
 
           {searchString && (
             <button
+              aria-label="Clear search"
               onClick={() => {
                 setSearchString("");
                 setNodes((nds) => nds.map((n) => ({ ...n, selected: false })));
@@ -440,6 +443,7 @@ const GraphView = ({
         {matchCount > 1 && (
           <div className="flex items-center gap-1 bg-[var(--node-bg-color)] px-2 py-1 rounded border border-[var(--text-color)] opacity-80">
             <button
+              aria-label="Previous match"
               onClick={() => navigateMatch("prev")}
               className="hover:bg-[var(--text-color)] hover:bg-opacity-20 rounded p-1 transition-colors"
               title="Previous match"
@@ -455,6 +459,7 @@ const GraphView = ({
             </span>
 
             <button
+              aria-label="Next match"
               onClick={() => navigateMatch("next")}
               className="hover:bg-[var(--text-color)] hover:bg-opacity-20 rounded p-1 transition-colors"
               title="Next match"

src/components/MonacoEditor.tsx

@@ -282,9 +282,8 @@ const MonacoEditor = () => {
   return (
     <div
       ref={containerRef}
-      className={`h-[92vh] flex flex-col ${
-        isAnimating ? "panel-animating" : ""
-      }`}
+      className={`h-[92vh] flex flex-col ${isAnimating ? "panel-animating" : ""
+        }`}
     >
       {isFullScreen && (
         <div className="w-full px-1 bg-[var(--view-bg-color)] justify-items-end">
@@ -307,12 +306,17 @@ const MonacoEditor = () => {
             value={schemaText}
             theme={theme === "light" ? "vs-light" : "vs-dark"}
             options={{
+
               minimap: { enabled: false },
               occurrencesHighlight: "off",
+              placeholder: "Paste your JSON Schema here to visualize the graph..."
+
             }}
+
             onChange={(value) => setSchemaText(value ?? "")}
             onMount={handleEditorDidMount}
           />
+
           <div className="flex-1 p-2 bg-[var(--validation-bg-color)] text-sm overflow-y-auto">
             <div className={VALIDATION_UI[schemaValidation.status].className}>
               {schemaValidation.message}

src/components/NavigationBar.tsx

@@ -31,6 +31,7 @@ const NavigationBar = () => {
       <ul className="flex gap-5 mr-10">
         <li>
           <select
+            aria-label="Schema format"
             onChange={(e) => changeSchemaFormat(e.target.value as SchemaFormat)}
             className="text-sm border rounded-sm bg-[var(--bg-color)] text-[var(--dropdown-text-color)] border-[var(--navigation-text-color)] cursor-pointer"
             value={schemaFormat}
@@ -41,6 +42,7 @@ const NavigationBar = () => {
         </li>
         <li>
           <button
+            aria-label={theme === "light" ? "Switch to dark mode" : "Switch to light mode"}
             className="text-xl cursor-pointer"
             onClick={toggleTheme}
             data-tooltip-id="toggle-theme"
@@ -59,6 +61,7 @@ const NavigationBar = () => {
         </li>
         <li>
           <a
+            aria-label="Star on Github"
             href="https://github.com/jagpreetrahi/visualize-json-schema"
             target="_blank"
             rel="noopener noreferrer"
@@ -75,6 +78,7 @@ const NavigationBar = () => {
         </li>
         <li>
           <a
+            aria-label="Open documentation"
             href="https://github.com/jagpreetrahi/visualize-json-schema?tab=readme-ov-file#json-schema-visualizer"
             target="_blank"
             rel="noopener noreferrer"

src/components/NodeDetailsPopup.tsx

@@ -51,6 +51,7 @@ const NodeDetailsPopup = ({
         onClick={(e) => e.stopPropagation()}
       >
         <button
+          aria-label="Close popup"
           className="absolute z-50 top-2 right-2 text-[var(--popup-text-color)] hover:text-[var(--popup-close-btn-hover-color)]"
           onClick={onClose}
         >
@@ -64,6 +65,7 @@ const NodeDetailsPopup = ({
                 <div className="font-mono text-xs text-[var(--text-color)] whitespace-nowrap">{extractPath(nodeId)}</div>
               </div>
               <button
+                aria-label="Copy path to clipboard"
                 onClick={copyPathToClipboard}
                 className="ml-2 p-1.5 text-[var(--navigation-text-color)] hover:text-[var(--text-color)] hover:bg-[var(--validation-bg-color)] rounded transition-colors flex-shrink-0"
                 title="Copy path to clipboard"