Add missing `params.completeCallback` to `MenuItemControl.focus()` for parity with `Control.focus()`. Also adds `params` to `MenuItemControl.expandForm`, `MenuItemControl.collapseForm()`, and `MenuItemControl.toggleForm()`.
Props MattGeri, westonruter.
Fixes#32681.
git-svn-id: https://develop.svn.wordpress.org/trunk@36383 602fd350-edb4-49c9-b593-d223f7449a82