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/Mobile/AuthController.php

@@ -28,7 +28,7 @@ class AuthController extends Controller
 
         return response()->json([
             'type' => 'Bearer',
-            'token' => $user->createToken($request->device_name)->plainTextToken
+            'token' => $user->createToken($request->device_name)->plainTextToken,
         ]);
     }
 
@@ -37,7 +37,7 @@ class AuthController extends Controller
         $request->user()->currentAccessToken()->delete();
 
         return response()->json([
-            'success' => true
+            'success' => true,
         ]);
     }
 }