Fix issues with disabling submittedModal
Fix issues with disabling submittedModal

The 2.16.0 release included the new submittedModal option, but when
that option is set to `false`, it simply moves the "Submitted" admin
bar button out of the "Workflow" dropdown into the main admin bar.
This change makes it so that the Submitted button is removed entirely
from the admin bar when that option is set to `false`

punkave/apostrophe-workflow,punkave/apostrophe-workflow