* css: Extract invalid input outline and shadow colors to variables.
We will use these colors in future for input pills and it would be
convenient to have them in a variable.
* group_setting_pill: Show outline on invalid input.
We could have manipulate the class directly from user_group_pill. But
it felt better to have `show_outline_on_invalid_input` as a param for
the input_pill prototype since we can have a consistent error state for
other pill input boxes if we want to.
* input_pill: Widget should not show as pending after pill creation.
* group_settings: Disable save changes button if pill widget is pending.
This will disable the button for group, realm and stream group settings.
* user_group_create: Don't go to next step with pending group widget.
We just show the red outline and shaking animation as an indication that
a group widget setting is pending when the user tries to go to the add
members step.
* stream_create: Don't go to next step with pending group widget.
Fixes#32113.
We just show the red outline and shaking animation as an indication that
a group widget setting is pending when the user tries to go to the add
subscribers step.
For settings with allow_everyone_group is False, guest users
are not allowed to do the task controlled by that setting even
if the guest user is member of the group which is used for
that setting.
So, we do not show guest users in typeahead for such settings
and also not create a pill when someone types full email of
the guest user in the input.
There is no such restriction in the API and it is fine
since we eventually have the check to not give guest user
the permission.
And we still allow guests to be part of any group, so there is
no restriction on using groups containing guests as subgroups
of the anonymous groups and showing them in typeahead.
We only use pills UI for can_manage_group setting currently,
but we can still pass setting_type in pill_config so that we
can use that while calling get_group_permission_setting_config
for checking if group is allowed to be used in the setting when
creating group pill from group name.
We currently use the pills UI only for can_manage_group setting so
it is fine to pass setting type as "group" directly to
get_realm_user_groups_for_setting, but it would be better to just
accept setting_type as parameter in typeahead_source and pass that
to get_realm_user_groups_for_setting as other settings will also
use the pills UI in future.
This commit adds code to show typeahead for group setting
pill container. We add a separate function as we only
want to show groups and users in the typeahead and the
options are also sorted in a different order compared
to other typeaheads.
