imap-smtp: Hide cluebar after user input
imap-smtp: Hide cluebar after user input

When a cluebar is shown, it's still being shown after the user
has clicked on the 'Ignore'/'Next' button until there is successful
validation of the password. It's better to hide it while the new
verification is ongoing, and show a new infobar if needed.

https://bugzilla.gnome.org/show_bug.cgi?id=764283

ritzk/gnome-online-accounts,ritzk/gnome-online-accounts,ritzk/gnome-online-accounts