Redesign the ContextMenu to meet matrial spec

The new ContextMenu follows the following spec.
https://m3.material.io/components/menus/specs#cd6409d5-9523-4099-9db7-42d1e1d2d194

The new ContextMenu is implemented behind the feature flag and it is
off by default.

Bug: 240385199
Test: Manually done
Change-Id: I7c5c05899bd4cfb8678aafd2e50c53d84cdd43c7