features: what does it do? why do we need it?
a11y-label for visually impaired ChromeVOx Next users, so purpose of controls are clear and usable

bugs: repro steps (I did X and expected Y but Z happened!)
1. ctrl=alt+z to enable ChromeVOx Next > search+shift+q+q to switch to Next
2. chrome://md-settings
3. search+ctrl+right arrow > search+left arrow

Observed:
Multiplication X
Multiplication X

Expected: 
a11y-label close/dismiss Send Feedback, so purpose of controls are accessible to visually impaired ChromeVox Next users