[FEAT] Basic accessibility updates for DaffMenuComponent

[xelaint]

:bulb: Feature request

Feature Name

Accessibility updates for DaffMenuComponent

The Desired Behavior

• [x] aria-haspopup and aria-expanded on DaffMenuComponent
• [x] Arrow key functionalities (https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Roles/menu_role)

Your Use Case

As a developer, I need to provide an accessible menu component for users.

Prior Work

Environment

Daffodil version: X.Y.Z
Angular version: X.Y.Z 

 
For Tooling issues:
- Node version: XX  
- Platform:  

Others:

[xelaint]

Currently blocked because aria-controls implementation doesn't work if using template ref to implement menu

[xelaint]

May no longer need to use templateRef.