Andrea Fercia e232ed28dc Accessibility: Improve the Tags meta box accessibility.
- changes the "X" links in buttons, improves their color contrast ratio and focus style
- adds screen reader text "Remove item: + tagname"
- uses `wp.a11y.speak()` to give screen reader users feedback when adding/removing tags
- makes the `tagcloud-link` toggle a button, with an `aria-expanded` attribute to indicate the tag cloud collapsed/expanded state
- changes colors for the autocomplete highlighted option in order to have a better color contrast ratio
- reduces the font size for the autocomplete on Press This
- removes CSS related to the old `suggest.js` from Press This

Props joedolson, cgrymala, azaozz, afercia.
Fixes #27555.


git-svn-id: https://develop.svn.wordpress.org/trunk@38880 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-23 18:15:07 +00:00
2016-09-06 18:12:09 +00:00
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