Standardize documentation across all *.tsx files

- Add file-level JSDoc comments to components that were missing them
- Ensure consistent documentation format across all components
- Improve code maintainability and readability

src/taskpane/components/ProgressBarButtons.tsx

@@ -1,3 +1,10 @@
+/**
+ * @file ProgressBarButtons.tsx
+ * @description Component that provides functionality to add and remove progress bars
+ * on PowerPoint slides. The progress bars visually indicate the current position within
+ * the presentation, with colored segments showing completed and upcoming slides.
+ */
+
 import * as React from "react";
 import { 
   Button,