minor fixes

app/Http/Controllers/MilestoneTasks/MilestoneTaskOrderController.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Http\Controllers\MilestoneTasks;
+
+use App\Classes\ValueObjects\Constants\HttpStatus;
+use App\Classes\ValueObjects\Response\ApiResponseObject;
+use App\Models\MilestoneTask;
+
+class MilestoneTaskOrderController
+{
+
+    public function update(int $milestoneTaskId, string $type){
+        $milestoneTask = MilestoneTask::find($milestoneTaskId);
+        $type === 'up' ? $milestoneTask->moveOrderUp() : $milestoneTask->moveOrderDown();
+
+        return (new ApiResponseObject('Task Order Changed Successfully',
+            'You have successfully changed the task order',
+            HttpStatus::OK_WITH_MESSAGE, []))->handler();
+    }
+
+}