feat: add initial Windows desktop platform support files and configuration.

pubspec.yaml

@@ -31,6 +31,7 @@ dependencies:
   video_player: ^2.9.1
   video_player_web: ^2.3.0
   video_player_web_hls: ^1.3.0
+  video_player_win: ^3.2.2
   chewie: ^1.8.3
   
   # UI Components
@@ -46,6 +47,7 @@ dependencies:
   intl: ^0.19.0
   equatable: ^2.0.5
   shared_preferences: ^2.3.2
+  video_player_win: ^3.2.2