This commit removes all instances of the `required-text` class,
which utilizes the `::after` pseudo-element to render empty list
message. To avoid inserting non-decorative content using a pseudo-
element, we will now use `list_widget.render_empty_list_message_
if_needed` introduced a few commits back to display the empty list
message.
Fixes#23072.
This commit introduces a function in list_widget.js that allows
displaying a message when the list is empty using the `data-empty`
dataset. The function checks the container type to determine the
appropriate wrapper for the message and appends it to the container
body.
Fixes a part of #23072.
evykassirer
Hemant Umre
Aman Agrawal