- Added WINDOW_FULLSCREEN_CHANGED and WINDOW_IS_FULLSCREEN constants for fullscreen state management.
- Enhanced main window to notify the renderer when entering or leaving fullscreen mode.
- Implemented IPC handlers to check fullscreen status and notify changes to the renderer.
- Introduced useFullScreen hook in the renderer to manage fullscreen state and adjust UI accordingly.
These changes improve user experience by allowing dynamic adjustments to the UI based on fullscreen status.
