Fix warnings

Author: nuno-vieira

Sources/StreamChatSwiftUI/ChatMessageList/Gallery/MediaViewer.swift

@@ -345,22 +345,24 @@ struct StreamVideoPlayer: View {
                 at: url,
                 options: VideoLoadOptions(cdnRequester: utils.cdnRequester)
             ) { result in
-                guard isVisible else { return }
-                switch result {
-                case let .success(videoAsset):
-                    utils.avPlayerProvider.player(from: videoAsset) { result in
-                        guard isVisible else { return }
-                        switch result {
-                        case let .success(player):
-                            self.avPlayer = player
-                            try? AVAudioSession.sharedInstance().setCategory(.playback, options: [])
-                            self.avPlayer?.play()
-                        case let .failure(error):
-                            self.error = error
+                Task { @MainActor in
+                    guard isVisible else { return }
+                    switch result {
+                    case let .success(videoAsset):
+                        utils.avPlayerProvider.player(from: videoAsset) { result in
+                            guard isVisible else { return }
+                            switch result {
+                                case let .success(player):
+                                    self.avPlayer = player
+                                    try? AVAudioSession.sharedInstance().setCategory(.playback, options: [])
+                                    self.avPlayer?.play()
+                                case let .failure(error):
+                                    self.error = error
+                            }
                         }
+                    case let .failure(error):
+                        self.error = error
                     }
-                case let .failure(error):
-                    self.error = error
                 }
             }
         }