Move the fucntionality of ActionsHandler into ChatbarCache and ActionsModel.
At this stage there wasn't much left that is was doing and the functionality could easily move.
"Room ID or Alias" is duplicated twice here, once in the dialog title
and a second time as the label for the text field. Let's change it to a
more suitable name "Manually Enter a Room".
This adds a short explanatory label to the "Enter a room address" button
in this list, in case the user does not know where to find their room
address.
Also changes the name of the button to "Enter a Room Manually" to refer
that you can enter aliases here as well.
Stop sending a pester message using showPassiveNotification every time there is a network error. There is already a proper handling with `isOnline` in `NeochatConnection`. This just causes issues overlapping content.
BUG: 488572
Currently the page experienc on mobile is suboptimal as back gestures do not work and the startup behaviour is not ideal.
This reworks it so that pages are now pushed as a layer on mobile and at startup only a saved space is restored. It is also setup so that on mobile you'll never see a blank room page (like when you select friends or home).
Make sure that the search filter is removed when another button is pressed.
Make sure that the popup closes when one of the other menus is open.
Make the separator is at the top on NavigationTabBar
There seem to be problems with the model not updating correctly when the room is set. This fix is a bit dirty, but seems to work well enough
BUG: 493197
Some confusing interaction with the code removed here causes us to open all rooms that come in.
We generally don't want that. I also don't understand why we're connecting for new rooms here - the room is already available in this case.
