Comment 3 for bug 1950510

A signed-off branch is here: https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/gcollum/lp1950510-screenreader-modal-headers-accessibility-signoff

Although I can't test with a screen reader, I do see the <h4> tag with the proper classes when I use inspect while viewing the record editor in Standing Penality and in Shelving Location Groups.