fix(mobile): asset state remain in gallery view after being deleted (#10603)

* fix(mobile): asset doesn't get removed from state renderList

* fix delete last assets

* refactor

mobile/lib/widgets/asset_grid/asset_grid_data_structure.dart

@@ -311,4 +311,12 @@ class RenderList {
     GroupAssetsBy groupBy,
   ) =>
       _buildRenderList(assets, null, groupBy);
+
+  /// Deletes an asset from the render list and clears the buffer
+  /// This is only a workaround for deleted images still appearing in the gallery
+  void deleteAsset(Asset deleteAsset) {
+    allAssets?.remove(deleteAsset);
+    _buf.clear();
+    _bufOffset = 0;
+  }
 }