Use createFileSystemWatcher to more reliably watch for file system changes

[mrubens]

This is an attempt at fixing the bug where newly created files aren’t available to @-mention.

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Important

Replaces file event listeners with a file system watcher in WorkspaceTracker for more reliable file event handling, with updated tests.

• Behavior:
  • Replaces file event listeners with a file system watcher in WorkspaceTracker.
  • Watches for file creation, deletion, and changes using createFileSystemWatcher('**').
  • Updates workspace on file events by calling addFilePath() and removeFilePath().
• Tests:
  • Adds WorkspaceTracker.test.ts to test file creation, deletion, and change events.
  • Mocks createFileSystemWatcher in Cline.test.ts to simulate file events.
• Misc:
  • Removes onDidCreateFiles, onDidDeleteFiles, and onDidRenameFiles listeners.
  • Adds the watcher to disposables for proper cleanup.
  • Updates README.md to mention the use of a file system watcher.

^{This description was created by for 947adc4. It will automatically update as commits are pushed.}

[changeset-bot]

🦋 Changeset detected

Latest commit: 947adc4

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
roo-cline	Patch

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