feat(mobile): Library page rework (album sorting, favorites) (#1501)

* Add album sorting

* Change AppBar to match photos page behaviour

* Add buttons

* First crude implementation of the favorites page

* Clean up

* Add favorite button

* i18n

* Add star indicator to thumbnail

* Add favorite logic to separate provider and fix favorite behavior in album

* Review feedback (Add isFavorite variable)

* dev: style buttons

* dev: styled drop down button

---------

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

mobile/assets/i18n/en-US.json

@@ -108,12 +108,17 @@
   "experimental_settings_new_asset_list_title": "Enable experimental photo grid",
   "experimental_settings_subtitle": "Use at your own risk!",
   "experimental_settings_title": "Experimental",
+  "favorites_page_title": "Favorites",
   "home_page_add_to_album_conflicts": "Added {added} assets to album {album}. {failed} assets are already in the album.",
   "home_page_add_to_album_success": "Added {added} assets to album {album}.",
   "home_page_building_timeline": "Building the timeline",
   "home_page_first_time_notice": "If this is your first time using the app, please make sure to choose a backup album(s) so that the timeline can populate photos and videos in the album(s).",
   "library_page_albums": "Albums",
   "library_page_new_album": "New album",
+  "library_page_favorites": "Favorites",
+  "library_page_sharing": "Sharing",
+  "library_page_sort_created": "Most recently created",
+  "library_page_sort_title": "Album title",
   "login_form_button_text": "Login",
   "login_form_email_hint": "youremail@email.com",
   "login_form_endpoint_hint": "http://your-server-ip:port/api",