Use app helped instead of facade

Signed-off-by: snipe <snipe@snipe.net>

app/Http/Middleware/CheckLocale.php

@@ -45,7 +45,7 @@ class CheckLocale
 
         }
         
-        \App::setLocale(Helper::mapLegacyLocale($language));
+        app()->setLocale(Helper::mapLegacyLocale($language));
         return $next($request);
     }
 }