chore(mobile): Run dart analyze in CI (#1425)

* Run dart analyze in CI

* Add pub get

* Fix linter errors in mobile code

mobile/lib/modules/home/services/asset_cache.service.dart

@@ -8,7 +8,8 @@ class AssetCacheService extends JsonCache<List<Asset>> {
   AssetCacheService() : super("asset_cache");
 
   static Future<List<Map<String, dynamic>>> _computeSerialize(
-      List<Asset> assets) async {
+    List<Asset> assets,
+  ) async {
     return assets.map((e) => e.toJson()).toList();
   }