We also add a check to see if `message_feed_container` is visible,
since it is possible that recent topics could be visible which
was not a possibility when this logic was written.
This data structure has never been one that we actually render into
the DOM; instead, its role is to support clicking into view that
contain muted streams and topics quickly.
This downgrade makes that situation much more explicit, and is also
useful refactoring to help simpify the upcoming changes in #16746.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Aman Agrawal
Anders Kaseorg
Steve Howell