Previously, some functions that conceptually belong to the connection needed to be in the Controller, since we didn't have a place to put them.
This fixes that by extending the Connection class in a similar way as we extend the Room class.
Merge the functionality of CollapseStateProxyModel into MessageFilterModel there is no need for a whole separate model the filters can be combined trivialy.
Push the room drawer as a page rather than a drawer when on mobile or the window is thin.
This also lays some foundations for having multiple different pages in the drawer by separating the room information into it's own component which could be switched out to show other things like highlights or media.
Add a timer to lockout the scroll trigger for marking messages as read in the first second after changing room. This is because the scrollview can't differentiate between mouse scrolling and the multiple changes in scrollview that happen as the room is changed over.
Instead of using translated custom values (which are not accepted by
AppStream validation) this adds the Windows-specific screenshots as
normal screenshots with custom attribute x-kde-os="windows". AppStream
validation accepts custom attributes (in fact, it ignores any attributes
other than "type").
Upstream appstream tooling will treat those screenshots as any other
extra screenshots (screenshots without type="default").
This fixes two minor inconveniences:
- When closing the chat window and re-showing it from the systray icon, the geometry was not properly restored. The window was always shown in the middle of the screen. Now, one gets the window back with it's actual last position and size.
- It is now possible to not only show the window from the systray icon, but also to close it. This is the way other chat programs do it (Kopete back in the day, Konversation, Quassel IRC etc.)
Make sure that the image container has it's implicit width/height set so that the correct size can always be calculated. This was breaking images that were a reply to another message (not sure if that's legal because we don't allow but other clients do because I found one).
