Merge the functionality of CollapseStateProxyModel into MessageFilterModel there is no need for a whole separate model the filters can be combined trivialy.
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.
Fix it so that the view is correctly positioned at the bottom when the room is changed and make sure this is not seen as a scroll event (i.e. messages are not automatically marked as read but the timer has to time out first and all visible on screen).
Create a media model for all the media message in the timeline and then setup `NeoChatMaximizeComponent` so that it can use the media model to scroll through all loaded images and video in the current room.
Depends upon libraries/kirigami-addons!105
FEATURE: 467411
