Fix error 500 on image upload

Without this missing import, the server threw "Class 'App\Http\Controllers\Api\UserSetting' not found" when trying to upload images.

app/Http/Controllers/Api/ApiV1Controller.php

@@ -21,6 +21,7 @@ use App\{
 	Status,
 	StatusHashtag,
 	User,
+    UserSetting,
 	UserFilter,
 };
 use League\Fractal;