Add allowed file extensions as 'accept' attribute for file uploads to improve UX
https://www.drupal.org/project/drupal/issues/3031371
Based on patch from DO-3031371-22 and the work from @idebr, @rakhi-soni, @mrinalini9, @david.muffley and @kmonahan.
Add allowed file extensions as accept
attribute for file uploads to improve UX.