Implement PHP CS Fixer and a coding standard to follow (#471)

* Create PHP CS Fixer config and add to CI workflow

* Run php cs fixer on project

* Add newline at end of file

* Update to use PHP CS Fixer v3

* Run v3 config on project

* Run seperate config in CI

app/Http/Controllers/V1/Settings/UpdateUserSettingsController.php

@@ -21,7 +21,7 @@ class UpdateUserSettingsController extends Controller
         $user->setSettings($request->settings);
 
         return response()->json([
-            'success' => true
+            'success' => true,
         ]);
     }
 }