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.
A variable in the Node.js context cannot be mutated by a function
evaluated in the browser context. The boolean was also incorrectly
inverted, and a click to open the dialog containing
`enter_sends_choice` was missing.
Co-authored-by: Aman Agrawal <amanagr@zulip.com>
Signed-off-by: Anders Kaseorg <anders@zulip.com>
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.
