Added anime priorities

- Users can now set the priority of a single entity
- Progress sorting has been replaced with priority sorting (may change
in the future)
- Added a status column in search dialog
- Code refactoring
- minor bug fixes
Fixed recognition bugs

- Fixed bug where a title with an episode number followed by a colon
would not be recognised. E.g. 05: or 03:

- Fixed a bug where user recognition titles were all reset when syncing
Added ability to change notes

- Fixed a few bugs
- Progress will now sort by the amount of episodes as well as the
priority
Added Export and Import Functionality

- Any anime whose slug is not in the library reply will automatically
get deleted, as it is safe to assume that if the slug didn't appear in
the reply it has either changed or been deleted by the user.

- Added maximum delay to queue manager
- Few bug fixes
Bug fixes
Fixed bug affecting last_watched
Small Tweaks