Fix usage of "any" in a LiveChat component

[Pratheek555]

Description:

Menu in livechat currently declares ref?: any and PopoverMenuWrapper relies on a legacy component-instance shape (Component & { base: Element }). This bypasses strict typing and can hide ref mismatches between Menu and its consumers.

Expected behavior:

• Menu should type ref from the actual rendered element contract (HTMLDivElement) instead of any.
• PopoverMenuWrapper should store/use a DOM ref (HTMLDivElement | null) and call getBoundingClientRect() directly without .base.

Actual behavior:

• MenuProps uses ref?: any.
• PopoverMenuWrapper uses menuRef?.base?.getBoundingClientRect(), coupling to a legacy component ref shape and weakening type safety.