Greasy Fork

- Data Storage: Switch from LocalStorage to GM Storage, this makes it so when clearing history/data everything is still saved.
- Backup Options: You can now merge or overwrite when restoring from backup.
- Migration: This is automatically done when updating, it will check for watched data in LocalStorage and move it to GM Storage, then remove shows from LocalStorage.

- IndexedDB Implementation: Replaced localStorage with IndexedDB for persistent storage.
- Migration Function: Added to automatically migrate data from localStorage to IndexedDB when the script runs. This will allow you to keep watched data from old version.
- Backup and Restore Compatibility: Now supports both the old localStorage format and the new IndexedDB format for backward compatibility.
- UI and Functionality: The script retains all existing functionality, with changes to ensure that the data persists across browser data clearing and updates.