Gajim stopped to properly restore roster and dialogs windows positions
after restart with more than one monitor attached.
Gajim saves the absolute window positions, i.e. based on the total screen size
of all monitors attached. Despite Gtk deprecated Gdk.Screen.width() and height(),
we cannot just use width() and height() for one monitor, as recommended.
We still need the total screen size, which was the base for saving the positions.
[1] https://stackoverflow.com/questions/30207586/gdk-screen-vs-monitor-vs-display
- Move ActionBar into HeaderMenu
- Make Design of ChatControl look cleaner
- Hide the Roster in Groupchats per default
- Add Button to hide/show Roster in Groupchats
- Move Groupchat topic into popover
- Display Avatars on the right side of the ChatControl and status on the
left
- Add a default Avatar for contacts that have none
- Add support for Pubsub Avatars
- Dont poll for vCard Updates, only use XEP-0153
- Dont cache vCards
- Store the avatar SHA of roster contacts in the DB
- Store the current SHA of each contact in the Contacts Object
- Move some code into the ConnectionVcard Class
