Fixing bug in Button selection (Confirmation Popup)

UOP1_Project/Assets/Prefabs/UI/Popup/Confirmation_Popup.prefab

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+        type: 3}
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     m_RemovedComponents: []
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   m_PrefabAsset: {fileID: 0}
-  m_Script: {fileID: 11500000, guid: 4e29b1a8efbd4b44bb3f3716e73f07ff, type: 3}
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   m_Name: 
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       propertyPath: m_Navigation.m_SelectOnLeft
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         type: 3}
       propertyPath: m_Name
       propertyPath: _currentType
       value: 1
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+    - target: {fileID: 7373103914063609958, guid: 344bb0b18b7db4b4e8874973eb391ca1,
+        type: 3}
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+      value: 4
+      objectReference: {fileID: 0}
+    - target: {fileID: 7373103914063609958, guid: 344bb0b18b7db4b4e8874973eb391ca1,
+        type: 3}
+      propertyPath: m_Navigation.m_SelectOnLeft
+      value: 
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     m_RemovedComponents: []
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-  m_CorrespondingSourceObject: {fileID: 252969180845692042, guid: 344bb0b18b7db4b4e8874973eb391ca1,
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   m_PrefabAsset: {fileID: 0}
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   m_Name: 
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UOP1_Project/Assets/Prefabs/UI/Popup/PopupButton.prefab

   m_Name: 
   m_EditorClassIdentifier: 
   m_Navigation:
-    m_Mode: 3
+    m_Mode: 1
     m_WrapAround: 0
     m_SelectOnUp: {fileID: 0}
     m_SelectOnDown: {fileID: 0}

UOP1_Project/Assets/Scripts/Menu/MenuSelectionHandler.cs

 		yield return new WaitForSeconds(.03f); // Necessary wait otherwise the highlight won't show up
 
 		if (_defaultSelection != null)
-			EventSystem.current.SetSelectedGameObject(_defaultSelection);
+			UpdateSelection(_defaultSelection); 
+		Debug.Log("Unselect");
 		currentSelection = null;
 		EventSystem.current.SetSelectedGameObject(null); 
 	}

UOP1_Project/Assets/Scripts/Menu/MultiInputButton.cs

 		_menuSelectionHandler.UpdateSelection(gameObject);
 		base.OnSelect(eventData);
 	}
-	public  void UpdateDefault()
+	public  void UpdateSelected()
-		Debug.Log("Select");
-	    _menuSelectionHandler.UpdateSelection(gameObject);
+		_menuSelectionHandler.UpdateSelection(gameObject);
 		
 	}
 

UOP1_Project/Assets/Scripts/UI/UIButtonSetter.cs

 	{
 		_buttonClickedEvent = buttonEvent;
 		if (select)
-			_button.UpdateDefault();
+			_button.UpdateSelected();
-		_button.UpdateDefault();
+		_button.UpdateSelected();
 	}
 
 	public void Click()

UOP1_Project/Assets/Scripts/UI/UIDialogueChoiceFiller.cs

 		_actionButton.interactable = true; 
 		if (isSelected)
 		{
-			Debug.Log("Select");
-			_actionButton.UpdateDefault();  
+			_actionButton.UpdateSelected();  
-		else
-		{
-			Debug.Log("Not selected");
-
-		}
+		
 	}
 
 	public void ButtonClicked()

UOP1_Project/Assets/Scripts/UI/UIManager.cs

 		_inputReader.menuCloseEvent -= HideBackToMenuConfirmationPopup;
 		_closePopupEvent.OnEventRaised -= HideBackToMenuConfirmationPopup;
 		
-		_pauseScreen.gameObject.SetActive(true); // Set pause screen to inactive
-		_clickUnpauseEvent.OnEventRaised += CloseUIPause; // unsub from clause pause popup since it's inactive 
-
+		_selectionHandler.Unselect(); 
+        _pauseScreen.gameObject.SetActive(true); // Set pause screen to inactive
+		_clickUnpauseEvent.OnEventRaised += CloseUIPause; // unsub from clause pause popup since it's inactive 
 
 		// time is still set to 0 and Input is still set to menuInput 
 		//going out from confirmaiton popup screen gets us back to the pause screen

UOP1_Project/Assets/Scripts/UI/UIPopupButtonSetter.cs

 
     void SelectButton()
 	{
-		_button.UpdateDefault();
+		_button.Select(); 
+		_button.UpdateSelected();
 	}
 
 	public void ButtonClicked()