feat: Add Diff View and File History Tracking

- Implemented a new Diff View in the Workbench to visualize file changes
- Added file history tracking with detailed change information
- Enhanced FileTree and FileModifiedDropdown to show line additions and deletions
- Integrated file history saving and retrieval in ActionRunner
- Updated Workbench view types to include 'diff' option
- Added support for inline and side-by-side diff view modes

wrangler.toml

@@ -3,4 +3,4 @@ name = "bolt"
 compatibility_flags = ["nodejs_compat"]
 compatibility_date = "2024-07-01"
 pages_build_output_dir = "./build/client"
-send_metrics = false
+send_metrics = false