Document list search, improvements and bugfixes

To initiate a new Studio without installing the CLI globally:

npx create-sanity@latest

To upgrade a v3 Studio:

npm install sanity@latest

It's now possible to search within document lists. We've also improved keyboard accessibility, making it much easier to navigate between lists and the document form editor itself.

• Fixes issue where Edit intent links that opens the on-screen keyboard in iOS/android while also opening dialogs would break the layout
• Improves linking to single spans of text in the Portable Text Input
• Fixes a bug that made fields without a group appear in all groups
• Fixes a bug with the Portable Text Editor where single span texts could become out of sync with the server value
• Fixes an issue where an object field’s value is not unset when all object field values are empty