It isn't immediately obvious when to close the window, other clients
(e.g. Element Web) has a "Got It" button in addition to the regular
dialog close button.
This super helpful and nice dialog went mostly unused, especially if you
only joined links to rooms through matrix.to or within NeoChat itself.
The reason why this never showed up for said links is because we were
greedily overwriting the "action". I don't think the code made solid
sense anyway, so I redone it a bit so there's a clearer
"join_confirmed" our UI uses. I added a test case to showcase this
working.
This should allow the devices page to hide the "Verify this Device"
warning, once you actually complete verification. I also made sure to
update the other consumer - the menu item under the user menu.
Additionally, I also fixed the password field not being automatically
focused when trying to remove a device.
We use error banners for intermittent errors (failing to join a room),
along with more long-standing/important errors (like going offline.) And
due to the nature of how we manage banner visibility - for example, the
online check could accidentally hide joining rooms errors which is
pretty bad.
To fix this, each error banner is assigned an id. All errors can still
overwrite each other as they could before, but they can only hide
banners of their own kind.
This seems to be an unintentional change in compact mode caused by 054f87cae2,
where an if check for "straight line" or "fill width" mode ended up
being removed. But this was needed for availableWidth() to return the
correct width for compact mode, otherwise it got weirdly centered and
ended up with a limited width.
