[SandObserver]

Summary

• Add widgetFramesLoaded to the e2e helpers: resolves once every widget frame has loaded its widget document.
• Replace the fixed waits before counting widget loads in two dashboard specs with widgetFramesLoaded, and use it in the wheel paging setup.
• Replace the fixed waits before reading live regions in the tile names spec with animationsDone.
• The remaining fixed waits prove that nothing further happens and stay.

Testing
All green, including the full e2e suite in Chromium and WebKit.

Changelog

Checklist

• Stays within the project constraints: one container, no runtime dependencies, no build step (see CONTRIBUTING.md).
• Tests added or updated for new logic, and the full suite, lint, and typechecks pass.
• Docs updated if behavior or configuration changed.