The source project of this merge request has been removed.
chore: Use new APIs of libadwaita 1.4
Removes the use of deprecated APIs.
A few other places can use new APIs, mainly to use AdwToolbarView wherever a headerbar is used and AdwNavigationView for the login and room details stacks. This should be done in a follow-up MR.
Supersedes !1227 (closed).
Edited by Kévin Commaille