The journal tiddler will be tagged with the name of the current
tiddler. This is similar to how the new here button works.
(Would have liked to reuse the journalButton code which is almost
identical between new-journal-here and new-journal, but I'm not
sure how to do it.)
This is a basic “new here” tiddler toolbar button that just creates a
new tiddler tagged with the title of the current tiddler.
@pmario is there anything else required?