Fix accessibility findings

[apburnes]

Review and fix identified accessibility issues for the dashboard

Notes

• Findings https://docs.google.com/spreadsheets/d/1q6uyDxJbZx0uxn8aBLk0NKQA-r4GbQrlU4f7U7UHt9U/edit?gid=371793552#gid=371793552

Acceptance Criteria

• Fix dashboard errors
• Fix single page errors
• Fix collections errors

[apburnes]

Waiting on possible schema changes to go into effect before working on issue