It is difficult to distinguish group PMs from 1:1 PMs, so to
improve the UI it is better to show different icon for group
PMs. Here we are using fa fa-group icon for group PMs.
Fixes#18069.
We only update the `.private_messages_header` here since
unread_counts of `.expanded_private_message` are updated
via `pm_list.update_private_messages`.
This fixes the bug of PMs in `.expanded_private_message` having
the same unread count as `private_messages_header`.
Since we rerender the DOM of `.expanded_private_message` every
time we update unread count of PMs, we don't need to manually
update them here. Also, we always keep them on display since
there is no real need to toggle them. They are not visible
when they have 0 unread counts via `.zero_count`.
We use an inverted color scheme to what we use for unread messages, so
that one's eyes scan these as different from unreads.
We also need to introduce a 1px offset because the border takes up space.
Fixes#17938.
In an effort to use a common class to display unread counts across
the app, we simplify the elements used to show unreads and use a
single `span` with `unread_count` class to do so.
This commit removes the option to add more streams out of scrollbar
as it is not visible on mobile devices or organizations with large number of
streams until scrolled down.
Hover does not work for touch-based devices like mobile phones.
Hence the the icons does not appear, making the user unaware of its
presence on such devices. The following media property displays the
icon by default for such behaviour.
Since All messages narrow is no longer home page for webapp,
we change its icon to align-left which also shows a concept of
interleaved topics / messages.