This commit adds a message and link to view or create streams on
empty streams panel. It conditionally renders the message when
there is no stream to show and also when any stream
event (delete,create,subscribe) occurs.
Co-authored-by: Tim Abbott <tabbott@zulip.com>
Fixes#21870.
Currently, when a user marks messages as unread in a stream/topic
and unsubscribes from the stream, both subscribe button and compose
banner will remain visible. This change will hide the compose banner
when the user unsubscribes from the stream and hopes to create a
better flow and reduce confusion.
This lets us simplify the long-ish ‘../../static/js’ paths, and will
remove the need for the ‘zrequire’ wrapper.
Signed-off-by: Anders Kaseorg <anders@zulip.com>