This also introduces a combo grid/flex layout, which will also be
applied to the DM and Streams headings.
Because there are now multiple classes referenced from the
Puppeteer tests, those selectors now include the expanded
navigation area's parent ID selector.
With the autocomplete dropdown, some users face trouble or uncertainty
while selecting topics. These changes adds a new indicator to the topic
typeahead dropdown while typing to the topic box. This ensures users
that they are on track and they are doing the right things. We also
suggest the current query even if it doesn't match a topic to continue
providing the new indicator.
Fixes: #23296.
Previously, we have duplicate stylings in compose banner and unread banner.
This is rather messy and creates a lot of styling rules. We should define
an abstraction for them. This change will rename compose_banner_action_button
to main-view-banner-action-button.
Previously this dropdown was only for selecting streams, but
soon it will also be for switching to a private message. This
name helps it be clearer that the dropdown is more general
purpose.
Fixes#11832
This lets the user see more options than the three that appear
in the typeahead menu, and prevents them from inputting invalid
stream names.
This change replaces the input field with the dropdown, and
updates everything that referred to the classnames of the old
input field, so that they now get the data they need from the
new dropdown.