Toolbar buttons don't have accessible names

[edjw]

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Steps for Reproduction

Run Lighthouse on any page with Quill on it

See that the page is marked down on accessibility because the toolbar buttons don't have text content or aria-label properties

Expected behavior:

Quill's toolbar buttons have aria-label properties

Actual behavior:

Quill's toolbar buttons don't have aria-label properties

Platforms:

n/a

Version:

1.3.7

[edjw]

I now see this is discussed in #2038 and #1173