Identify and catalog golden user-journeys for accessibility testing
## Goal
Identify golden user-journeys that should be covered with accessibility feature tests.
## Acceptance Criteria
- [x] Search for test cases with golden journey label/designation (use Duo if helpful)
- [x] Create a list of identified golden journeys with links to existing E2E test cases
- [x] Prioritize journeys from **Create** and **Plan** stages first
- [x] Create individual child issues for each selected golden journey
## Resources
- Test cases: https://gitlab.com/gitlab-org/gitlab/-/quality/test_cases
- Parent issue: #564968
## Output
A list of issues, one per golden journey, ready for spec translation work.
Relates to: #564968
issue