[NuGet.org Bug]: [a11y compliance] Reserved checkmarks need a role/title/alt/etc attribute

[drewgillies]

Impact

Other

Describe the bug

To comply with screen readers etc, the guidance is:

Fix ONE of the following:

• Element does not have an alt attribute
• aria-label attribute does not exist or is empty
• aria-labelledby attribute does not exist, references elements that do not exist or references elements that are empty
• Element has an empty title attribute
• Element's default semantics were not overridden with role="none" or role="presentation"

The reserved checkmarks in the Package Details page, and presumably other locations do not comply.

Repro Steps

Visit a Package Details page and view source--the required attributes are not present. Windows Narrator does work though.

Expected Behavior

See above.

Screenshots

No response

Additional Context and logs

No response

[drewgillies]

Note that this was tested on Windows Narrator and NVDA: #8521 and #8622 but still falls short of compliance with the required tags.