Easier to access manual sync for mobile client

Currently, the main way to sync to server is the Synchronize button on the sidebar/notebook list. Additional sync/save methods include,

  1. Ctrl-S for desktop
  2. Save button on mobile when there’s local edit

This works wll for the desktop client since Ctrl-S can be used when viewing a note and the sideband can also be open without closing the current note.

However, for mobile clients, it seems impossible to sync changes from server without closing the note first in order to press the sync button at the top level menu. It would be nice to add a button to the note viewing/editing page so that it can be accessed directly.

As an asside, it’ll be nice to trigger a sync by dragging the list down past the top limit. That’s a pretty standard gesture for triggering the sync. It doesn’t really fully replace a button though, since the drag can also cause the current position in the note to be lost for a long one. The top bar already holds the optional save button and the back button so there should be enough for another one (and it can take the same spot as the save button).