Sync on new note closure is distracting

When new notes are created a sync is performed upon closure to ensure any title sanitisation is performed (as they're ignored during editing to reduce distraction when the top buffer line is being applied as the title..). But this sync is a little distracting returning to the index, it somewhat gives the impression that sync has been blocked on a note that's possibly been idle in the editor for some time.

Instead let's just hold onto any received sanitised title and apply it when closing the editor.