Add object type field

[ryanleichty]

This is an idea coming from Sanity. In Sanity, they have an object type schema that allows you to nest other schema types/fields within it. You can optionally collapse the object field too. This helps keep things organized as well as frees up handle names.

In a way, it's kind of similar to matrix fields, except you're not adding nested entries. Just nested fields.

Possible UI idea:

We're currently handling this by naming things like seoTitle, seoDescription, and seoImage:

[brandonkelly]

Thanks for the suggestion! This is basically the same idea as #14600 – something we’re starting to think through 😉

[ryanleichty]

Nice, yeah that's basically the same idea 👍