Trying to move buttons via Coroutine and transform.Translate

Hello, I'm trying to move the buttons to a specific position by pressing arrow keys. However, when I applied my code, the buttons moved nonstop. This is my code.

  void Update () {
         int horizontal = 0;
 
         horizontal = (int) Input.GetAxisRaw("Horizontal");
 
        if(horizontal == 1){            
             foreach(GameObject button in buttons){
                 Vector3 newPosition = button.transform.position - new Vector3(1f,0f,0f);
                 StartCoroutine(SmoothMovement(button,newPosition));
             }
         }
     }
 
 
 
     protected IEnumerator SmoothMovement(GameObject button,Vector3 end){
         float sqrRemainingDistance = (button.transform.position - end).sqrMagnitude;
 
         while (sqrRemainingDistance > float.Epsilon) {
             button.transform.Translate(-inversedMoveTime*Time.deltaTime,0f,0f);
             sqrRemainingDistance = (button.transform.position - end).sqrMagnitude;
             yield return null;
         }
     }

I cannot figure out why this is not work. All buttons is on the canvas, I'am not sure if it have something to do with world and canvas space.