ADFA-5640: Rename Extensions Manager to Addons Manager

The Preferences entry point and the code comments describing it
referred to the merged Plugins/Templates screen as the "Extensions
Manager", predating its current scope. Renamed to "Addons Manager"
throughout, and updated the entry's summary from "Manage IDE plugins
and templates" to "Manage IDE addons" to match.

The in-screen TopAppBar title ("Plugins & Templates") is a separate
string describing the two tabs and is left as-is.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: yaturner

app/src/main/java/com/itsaky/androidide/app/IDEApplication.kt

@@ -148,7 +148,7 @@ class IDEApplication :
 		/**
 		 * [Context.getFilesDir] does a real disk check (`File.exists()`) on every call, not just
 		 * the first - callers on the main thread (e.g. Koin's [pluginModule] resolving on first
-		 * navigation to the Extensions Manager) trip StrictMode's DiskReadViolation. Cache it once,
+		 * navigation to the Addons Manager) trip StrictMode's DiskReadViolation. Cache it once,
 		 * off-main, before Koin starts (see the `onCreate()` warmup) so later reads are a plain
 		 * field access instead of a syscall, and pluginModule/templateModule can never be the
 		 * first to trigger the underlying disk read.
@@ -213,7 +213,7 @@ class IDEApplication :
 		// https://appdevforall-inc-9p.sentry.io/issues/6860179170/events/7177c576e7b3491c9e9746c76f806d37/
 
 		// Warm cachedFilesDir on an IO thread before Koin starts, so pluginModule/templateModule
-		// (resolved on the main thread on first navigation to the Extensions Manager) can never
+		// (resolved on the main thread on first navigation to the Addons Manager) can never
 		// race the disk read - see cachedFilesDir's doc. The disk access itself runs off-main;
 		// this only blocks onCreate() waiting for that fast, one-time result. Only safe when
 		// credential-protected storage is already unlocked - instance.filesDir uses the default

app/src/main/java/com/itsaky/androidide/ui/compose/ManagerScreen.kt

@@ -135,7 +135,7 @@ private class LongPressAwareClick(
  * and Templates, defaulting to Plugins. Owns the one shared Scaffold/TopAppBar.
  *
  * The add FAB is shown on both tabs and accepts either archive type - this screen is the
- * Extensions Manager, and "add an extension" means the same thing whichever tab you happen to be
+ * Addons Manager, and "add an addon" means the same thing whichever tab you happen to be
  * looking at. The picked file is routed by extension and the matching tab is brought forward, so
  * the result is visible where it landed. The discover-plugins action stays Plugins-only: it opens
  * a plugin catalog, which has no meaning on the Templates tab.

resources/src/main/res/values/strings.xml

@@ -1007,8 +1007,8 @@
 
 	<!-- Plugin System -->
 	<string name="plugin_manager">Plugin Manager</string>
-	<string name="plugin_manager_title">Extensions Manager</string>
-	<string name="plugin_manager_summary">Manage IDE plugins and templates</string>
+	<string name="plugin_manager_title">Addons Manager</string>
+	<string name="plugin_manager_summary">Manage IDE addons</string>
 	<string name="msg_open_plugin_settings_failed">Could not open this plugin\'s settings</string>
 	<string name="plugins">Plugins</string>
 	<string name="no_plugins_installed">No plugins installed</string>