JSON datatype

[joepio]

Sometimes you don't want to deal with creating Properties and hosting these somewhere - you just want to have some JSON thing (array, object, whatever).

We could add JSON as a datatype.

Implementation

• Add it to datatypes.rs
• Add to urls.rs
• Add to values.rs + test
• Add to serialize.rs (val_to_serde)
• Add to default_store.json

[joepio]

I think this is particularly relevant once we'll use something like BlockNote as a rich-text editor #741 , which we should probably store as JSON + Yjs commits.

[joepio]

Strings, undefined, object and array are all valid JSON. So we need to deal with all of these in all parsers if we allow JSON datatype. In other words, it makes parsing JSON AD more complicated. It would also require that the parser knows the Datatype of the Property.

We could also consider encoding the JSON value as a string.