[minor] Exposing ref in Avatar, badge, button, card and chip to improve popover compatibility

[Jialecl]

…er compatibility

Checklist
(Check off all the items before submitting)

• Build process is done without errors. All tests pass in the /lib directory.
• Self-reviewed the code before submitting.
• Meets accessibility standards.
• Added/updated documentation to /website as needed.
• Added/updated tests as needed.

Purpose
Popover needs access to the ref to know the exact position it needs to placed itself in reference to the trigger.