Follow-up SVG tests

[cookiecrook]

Tracker for the items from #69 that were blocked or punted from the Interop 2023 Accessibility Investigation.

• [ ] #79
• [ ] #81
• [ ] #82
• [ ] #84

Once all the above subtasks are complete:

• [ ] Go back and verify none of the research, tasks, and cross-references for #69 were overlooked

[cookiecrook]

#84 looks like it's unblocked, but the rest are waiting on SVG-AAM response from the SVG working group. Unless that repo were taken over by ARIA WG, 4 out of the 5 subtasks are out-of-scope for the 2024 investigation.

[cookiecrook]

Closing as all the work is tracked by linked open issues.