1.1.0

feat: Enhance cloud sync and UI features

- Added per-folder cloud sync with a prompt for syncing vaults upon opening.
- Introduced 15 new themes, bringing the total to 24, with improved theme synchronization.
- Redesigned loading screen and success/error pages for a better user experience.
- Implemented folder metadata syncing to Firestore and fetching of synced folder IDs.
- Updated sidebar to indicate synced folders with a cloud icon.
- Improved Electron window background color synchronization with active themes.