* Add api for add/remove playlist items
* Add playlistItemId property to normalized Song
- This is used for Navidrome to delete songs from playlists
* Add mutations for add/remove from playlist
* Add context modal for playlist add
* Add remove from playlist from context menu
* Set jellyfin to use playlistItemId
* Adjust font sizing
* Add playlist add from detail pages
* Bump mantine to v6-alpha.2
* Add letter spacing to cell text
* Set window control height in px
* Add temp unused routes
* Migrate text title font weights
* Bump mantine to v6 alpha
* Migrate modals / notifications
* Increase header bar to 65px
* Adjust play button props
* Migrate various components
* Migrate various pages and root styles
* Adjust default badge padding
* Fix sidebar spacing
* Fix list header badges
* Adjust default theme
