If the last active connection is not reachable (server down, keychain problems,
token revoked, etc.), NeoChat currently fails to load at all, with the only fix
being to delete a line from the config file. This is surprisingly hard to fix with
a nice UX as long as we stick to the principle of loading the user's last active
connection automatically.
This patch thus drops that principle; instead, the user is always asked to choose
the connection to continue with.
Create a mobile version of explore component and place it at the bottom for single handed use. This also refactors the UserInfo component so it can be at the top on mobile as well as the bottom on dektop.
This should have no effect on desktop and should be identical.

Fix opening a room in a new window. This is done by makeing the model top level parameters in RoomPage set from RoomManager but overwritten by RoomWindow
This MR deals with only sending threaded messages. Showing threads will turn up in a follow up. This allows you to start a new thread by clicking reply in thread to a normal message.
You can also do a threaded reply to a threaded message in the main timeline at the moment because those messages aren't shown in a separate thread timeline yet but will be in future.
Move the functionality to cache the contents of a chat bar from the room directly and to a new ChatCache object. This works pretty much the same with a few extra check and balances, this also made it easy to put a test suite around the functionality so I did. The current functionality should be identical to what exists.
This is in prep for threads which will require managing even more caches if we create one per thread.
- Don't show a dot over profile pictures.
The dot was intended to be part of the Avatar when there is no image and the Avatar is too small to show an icon.
Currently, it is visible over the profile picture. If we still want the dot, it should be upstreamed
- Fix avatar images in StateComponent