- changes are now committed in bulk when closing the dialog,
and can be canceled
- it's not necessary to save the note to the database to preview it
- duplicate fields are now shown as duplicates in the top list
- redraw preview more quickly
- use + instead of _ when deduplicating names, as the latter is a
glob character
- field changes are now applied when user closes dialog with save
button, in bulk
- models diag now fetches note type and saves it as required, instead
of holding on top a copy that can grow stale as changes are made in
subdialogs
- both dialogs now perform operations in the backend
- note.model() now fetches the note type on the fly, instead of
holding on to a copy that may become stale
