This commit renames the html_yes_button parameter of confirm
dialog widget to html_submit_button and also all the related
variables in confirm_dialog.js.
This will help in keeping a general name when deduplicating
the code for confirm_dialog and edit_fields_modal.
The dialog now shows `stream > topic` instead of
just the topic.
This creates a new tiny widget for this purpose,
which can be reused in other places too.
The `undefined` case is probably very unlikely, but
if the `stream_id` is bad, after the user confirms,
the request will fail on the backend, which could
confuse the user, since there will be no changes to
the starred messages in view.
So, we don't open the confirmation dialog at all in
such cases.
Long labels like "Unstar messages" can be confusing for
translators and it can also create bad strings that can
end with like 4 long words in German. It is better to
have the simple options like "Confirm" and "Cancel".
This commit fixes this issue by changing such text
to "Confirm" as default in confirm_dialog_modal.
Part of #17926.
sahil839
aryanshridhar
Abhijeet Prasad Bodas
Anders Kaseorg
Nikhil Maske