[Epic - a11y] Accessibility Phase 2: Dashboards & Panels

# Assess the accessibility in the Realm of Dashboards Each issue describes a single place we need an assessment for. Manual assessments are too time consuming for now, so we shall rely on [FastPass](https://accessibilityinsights.io/docs/web/overview/) where we can see the a11y errors that are immediately visible and open issues for each of them. - Bug hunting sessions - logging the [issues here](https://docs.google.com/spreadsheets/d/1Cx2RzgqyJUpYQbIhMk0RKNIqX-_ohaHsr76MNgRJhZE/edit?usp=sharing). ## To do #### To _semi-automatically_ find and open on GitHub - [x] #57456 - [ ] A11y: Dashboard: Assess open dashboard page with open share modal with each submenu opened one by one - [ ] A11y: Dashboard: Assess open dashboard page with open save modal/side view - [ ] A11y: Dashboard: Assess open dashboard page with open 'Add panel' choice selection - [ ] A11y: Dashboard: Assess open dashboard page with open 'Add panel from panel library' embedded selection - [ ] A11y: Dashboard: Assess a dashboard page with >= 2 separate rows of panels - [ ] A11y: Dashboard: Assess a dashboard time picker - [ ] A11y: Dashboard: Assess a dashboard in cycle view mode - [ ] A11y: Dashboard: Assess a dashboard in kiosk mode - [ ] A11y: Dashboard: Assess 'Share panel' modal open with each submenu open one by one - [ ] A11y: Dashboard: Assess Inspect sidebar with each submenu opened on by one - [ ] A11y: Dashboard: Assess panel view page - [ ] A11y: Dashboard: Assess panel edit page - Pay special attention to query runner, thresholds, datalinks, field overrides, annotations - [ ] A11y: Dashboard: Assess dashboard settings page **General** - [ ] A11y: Dashboard: Assess dashboard settings page **Annotations** - [ ] A11y: Dashboard: Assess dashboard settings page **Annotations** inside **New annotation query** form - [ ] A11y: Dashboard: Assess dashboard settings page **Annotations** within an existing annotation overview - [ ] A11y: Dashboard: Assess dashboard settings page **Variables** wit…