Mapping and navigation improvements in Canvas documents

You can now add reference blocks to Canvas documents via the /-command menu.

When the Canvas document is connected to a studio, the block allows you to find documents in the dataset.

Reference blocks can be mapped to compatible reference fields in your schema.

When manually mapping a block or text to the form mini-map, you will now get an indication why a field might be incompatible.

You can now provide your feedback on your Canvas to Studio mapping experience. Use the new thumbs-up/thumb-down buttons at the bottom of the studio panel.

Canvas documents now show navigation breadcrumbs, instead of the previous documents side panel.

Canvas documents can now be created by visiting https://www.sanity.io/@<orgId>/canvas/new

This url can be added as a bookmarks to quickly create new Canvas documents as needed.

Instruction and rewrite blocks have been given a makeover.

There are now 6 heading sizes to choose from.