Sanity Studio v4.20.1: Fixes ERR_REQUIRE_CYCLE_MODULE and upgrade React to 19.2.1

✨ Highlights

🐛 Notable bugfixes

fixes: ERR_REQUIRE_CYCLE_MODULE on node older than 20.19.5 and 22.15

fixes: Error: Unable to resolve \sanity` module root` errors on windows.

Fixes fix: issue with handling of required array member assets in schema extraction/type generation TypeGen marks assets of images inside arrays as optional, even with assetRequired() #6773

Handle URL import from the themer builder