Remove flutter chat (#26)

Had to squash merge manually as Forgejo was erroring

lib/widgets/players/video.dart

@@ -0,0 +1,38 @@
+import "dart:async";
+
+import "package:flutter/material.dart";
+import "package:hooks_riverpod/hooks_riverpod.dart";
+import "package:nexus/models/info/video.dart";
+import "package:flutter_hooks/flutter_hooks.dart";
+import "package:media_kit/media_kit.dart";
+import "package:media_kit_video/media_kit_video.dart";
+import "package:nexus/helpers/extensions/get_headers.dart";
+
+class VideoPlayer extends HookConsumerWidget {
+  final VideoInfo? info;
+  final Uri url;
+  const VideoPlayer(this.url, this.info, {super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final player = useMemoized(
+      () => Player(
+        configuration: PlayerConfiguration(bufferSize: 128 * 1024 * 1024),
+      ),
+    );
+    final controller = useMemoized(() => VideoController(player));
+
+    useEffect(() {
+      scheduleMicrotask(
+        () => player.open(
+          Media(url.toString(), httpHeaders: ref.headers),
+          play: false,
+        ),
+      );
+
+      return player.dispose;
+    }, []);
+
+    return SizedBox(height: 300, child: Video(controller: controller));
+  }
+}