Fix player size handling

Shared/Player/VideoPlayerView.swift

@@ -49,14 +49,20 @@ struct VideoPlayerView: View {
             .onOpenURL { OpenURLHandler(accounts: accounts, player: player).handle($0) }
             .frame(minWidth: 950, minHeight: 700)
         #else
+            GeometryReader { geometry in
                 HStack(spacing: 0) {
                     content
                         .onAppear {
+                            playerSize = geometry.size
+
                             #if os(iOS)
                                 configureOrientationUpdatesBasedOnAccelerometer()
                             #endif
                         }
                 }
+                .onChange(of: geometry.size) { size in
+                    self.playerSize = size
+                }
                 .onChange(of: fullScreenDetails) { value in
                     player.backend.setNeedsDrawing(!value)
                 }
@@ -79,6 +85,7 @@ struct VideoPlayerView: View {
                     motionManager = nil
                 }
                 #endif
+            }
         #endif
     }