* Use our standard XYZMock(.init()) pattern everywhere instead of XYZMock.default.
* Remove the configuration parameter label on mock convenience inits.
* Update the enterprise submodule.
* Make sure the inviter's avatar is hidden in the JoinRoomScreen.
* Update preview tests to use an inviter that has an avatar…
* Also hide avatars in the Space invite avatar pile.
* Add support for space rooms to JoinRoomScreenModel.
* Make a single wrapper type for JoinRoomScreen previews to simplify instantiation.
* Add previews for JoinRoomScreen for spaces.