loginDialog: Show session menu button when in IN_PROGRESS status

loginDialog: Show session menu button when in IN_PROGRESS status

Commit c8bb45b added a new IN_PROGRESS status that replaces FAILED
while the user is still allowed to retry authentication.

We need to account for it when updating the visibility of the
session menu button, otherwise the button disappears after
entering a wrong password.

Fixes: c8bb45b41c ("gdm: Limit verification cancellations to be conform to allowed-failures")
Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5784
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3638>