OAuth Support (#53)

Rips out the old auth method, adds OAuth support. Fixes #51.

Tested Platforms:
- [x] Linux
    - [x] Flatpak
    - [x] Native (Nix)
- [x] Android
- [ ] Windows
- [ ] MacOS

Reviewed-on: Nexus/nexus#53

pubspec.yaml

@@ -16,9 +16,10 @@ flutter:
   uses-material-design: true
 
 environment:
-  sdk: "^3.11.5"
+  sdk: "^3.12.2"
 
 dependency_overrides:
+  path_provider_android: 2.2.23 # Pinned to avoid JNI
   linkify:
     git:
       url: https://github.com/appelladev/linkify
@@ -29,31 +30,31 @@ dependencies:
     sdk: flutter
   flutter_localizations:
     sdk: flutter
-  flutter_riverpod: 3.3.1
-  hooks_riverpod: 3.3.1
+  flutter_riverpod: 3.3.2
+  hooks_riverpod: 3.3.2
   intl: 0.20.2
   fast_immutable_collections: 11.2.0
-  path_provider: 2.1.5
+  path_provider: 2.1.6
   url_launcher: 6.3.2
   freezed_annotation: 3.1.0
-  image_picker: 1.2.2
-  file_picker: 11.0.2
+  image_picker: 1.2.3
+  file_picker: 12.0.0-beta.7
   path: 1.9.1
   dynamic_color: 1.8.1
   collection: 1.19.1
-  window_manager: 0.5.1
+  window_manager: 0.5.2
   color_hash: 1.0.1
   flutter_widget_from_html_core: 0.17.2
   flutter_svg: 2.3.0
-  json_annotation: 4.11.0
+  json_annotation: 4.12.0
   shared_preferences: 2.5.5
   fluttertagger: 2.3.2
   dynamic_polls: 0.0.7
   flutter_hooks: 0.21.3+1
   cross_cache: 1.1.0
   ffi: 2.2.0
-  hooks: 1.0.3
-  code_assets: 1.0.0
+  hooks: 2.0.2
+  code_assets: 1.2.1
   ffigen: 20.1.1
   timeago: 3.7.1
   http: 1.6.0
@@ -67,23 +68,24 @@ dependencies:
   media_kit: 1.2.6
   media_kit_video: 2.0.1
   media_kit_libs_video: 1.0.7
-  measure_size: ^5.0.2
-  m3e_buttons: ^0.0.3
+  measure_size: 5.0.2
+  m3e_buttons: 0.0.4
   navigation_rail_m3e:
     git:
       url: https://github.com/Henry-Hiles/material_3_expressive
       path: packages/navigation_rail_m3e
-  m3e_card_list: ^0.1.0
-  xdg_directories: ^1.1.0
-  package_info_plus: ^9.0.1
+  m3e_card_list: 0.1.0
+  xdg_directories: 1.1.0
+  package_info_plus: 10.2.1
+  app_links: 7.2.1
   
 dev_dependencies:
-  build_runner: 2.15.0
+  build_runner: ^2.15.1
   flutter_lints: 6.0.0
-  freezed: 3.2.5
-  riverpod_lint: 3.1.3
+  freezed: 3.2.6-dev.1
+  riverpod_lint: 3.1.4
   flutter_launcher_icons: 0.14.4
-  json_serializable: 6.13.0
+  json_serializable: 6.14.0
 
 flutter_launcher_icons:
   ios: true