Mat 1134b

[eschiebel]

• the function that moved the box as the page or tinymce content area scrolled didn't call requestAnimationFrame correctly
• the code that located the box as the the violation scrolled out of view wasn't located correctly
• when the a11y checker opened it would call violationelement.scrollIntoView(), which could be hidden behind tinymce's sticky header if the RCE was scrolled to the top of the page
• bumped version number

closes MAT-1134

[eschiebel]

have a new and better way to do this with just css