Customization options for asset grid (#498)

* Add settings options for number of assets per row and storage indicator

* Add attributes to enum to avoid duplicate code

* Also apply customizations to albums

* Minor Refactorings

* Three stage loading i18n fix

mobile/lib/modules/settings/ui/image_viewer_quality_setting/three_stage_loading.dart

@@ -36,6 +36,7 @@ class ThreeStageLoading extends HookConsumerWidget {
     }
 
     return SwitchListTile.adaptive(
+      activeColor: Theme.of(context).primaryColor,
       title: const Text(
         "theme_setting_three_stage_loading_title",
         style: TextStyle(