feat: Fullscreen 2.0 with instant handoff, screen brightness gestures, and real-time scrub preview (v3.1.9)

pubspec.yaml

@@ -1,7 +1,7 @@
 name: gel_rule_app
 description: Local backend/core layer for a Flutter booru browser app.
 publish_to: "none"
-version: 3.1.8+69
+version: 3.1.9+70
 
 environment:
   sdk: ">=3.3.0 <4.0.0"
@@ -33,6 +33,7 @@ dependencies:
   media_kit_libs_android_video: ^1.3.8
   share_plus: ^10.0.0
   dynamic_color: ^1.7.0
+  screen_brightness: ^2.1.11
 
 dev_dependencies:
   flutter_test: