[SuperEditor][SuperReader][Quill] - Make it easier to apply indentations during deserialization

[matthew-carroll]

Various nodes support indent. Indents need to be serialized and deserialized, e.g., in the Quill format with the "indent" property.

Currently, when deserializing a Quill delta with an indent, we have to submit 1+ indent requests to the editor. There are two aspects of this that are unnecessary:

1. If we know we need to indent to level 3, we should be able to do that with a single request, instead of 3 requests
2. If we know the indent when creating the node, we should be able to pass that into the request to create the node

Verify the reasonableness of the above changes, and if they're reasonable, then make those changes.