Remove widget size state from mirrored media actions

- Derive image and text flip dimensions from content directly
- Delete per-widget size providers and snapshot plumbing
- Add dimension helpers and cover side-switch behavior in tests
a71ea700c1Dara Adedeji committed on 5/13/2026, 1:59:09 AMparentd9c2b98
15 files changedLine totals unavailable