feat(android,interface): Implement video thumbnail generation

packages/moxplatform_android/lib/src/platform_android.dart

@@ -1,3 +1,4 @@
+import 'package:moxplatform/moxplatform.dart';
 import 'package:moxplatform_platform_interface/moxplatform_platform_interface.dart';
 
 class AndroidPlatformImplementation extends PlatformImplementation {
@@ -20,4 +21,10 @@ class AndroidPlatformImplementation extends PlatformImplementation {
   Future<void> openBatteryOptimisationSettings() {
     return MoxplatformInterface.api.openBatteryOptimisationSettings();
   }
+
+  @override
+  Future<bool> generateVideoThumbnail(
+      String src, String dest, int width) async {
+    return MoxplatformInterface.api.generateVideoThumbnail(src, dest, width);
+  }
 }