chore

mobile/lib/ui/home/memories/memory_cover_widget.dart

@@ -1,5 +1,4 @@
 import "package:flutter/material.dart";
-import "package:flutter/scheduler.dart";
 import "package:photos/models/memories/memory.dart";
 import "package:photos/theme/colors.dart";
 import "package:photos/theme/effects.dart";
@@ -57,8 +56,7 @@ class _MemoryCoverWidgetState extends State<MemoryCoverWidget> {
 
     final memory = widget.memories[index];
     final isSeen = memory.isSeen();
-    final brightness =
-        SchedulerBinding.instance.platformDispatcher.platformBrightness;
+    final brightness = Theme.of(context).brightness;
 
     return Padding(
       padding: const EdgeInsets.symmetric(

mobile/lib/ui/viewer/file/video_widget_media_kit_new.dart

@@ -136,8 +136,7 @@ class _VideoWidgetMediaKitNewState extends State<VideoWidgetMediaKitNew>
           // ignore: unawaited_futures
           asset.getMediaUrl().then((url) {
             _setVideoController(
-              url ??
-                  'https://user-images.githubusercontent.com/28951144/229373695-22f88f13-d18f-4288-9bf1-c3e078d83722.mp4',
+              url ?? "",
             );
           });
         }