Hello everyone!

I somehow stumbled on this PR and I noticed this PR adds `requestFocus` parameter to classes/widgets other than related to PopupMenuButton such as bottom sheet, dialog, transition route, overlay route but doesn't test them.

It makes it possible to remove some of the `requestFocus` parameters  from this PR without failing any tests in the framework.

If anyone is interested in writing tests, please let me know. If not, I'd be happy to write those missing tests.