### What?
When you first edit a document and then open the Schedule publish
drawer, you can schedule publish changes but the current changes made to
the form won't be included.
### Why?
The UX does not make it clear that the changes you have in the form are
not actually going to be published.
### How?
Instead of allowing that we just disable the Schedule Publish drawer
toggler so that users are forced to save a draft first.
In addition to the above, this change also passes a defaultType so that
an already published document will default the radio type have
"Unpublish" selected.
618624e110
