This commit adds code to colorize the stream privacy icons in
dropdown list widget. Both the selected option in button and
options in the menu are colorized as per the stream color.
Fixes#25282.
We now show the stream privacy type icon for the option
selected in dropdown list widget.
This commit also includes a minor CSS change to make the
web-public better aligned in the dropdown list widget
"Move topic" and "Move message" modal. There is no visible
change for other pages and other icons due to this CSS
change.
Fixes part of #22355.
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>