fix: Various editor header and metadata fixes (#2361)

* fix: Publish button disabled on drafts in read-only mode
fix: Template selector appears on edited documents

* fix: Save button does not immediately come available when selecting a template

* fix: Template menu item alignment
closes #2204

* fixes: Use policy for display of star in document title
closes #2354

* fix: Modified time is sometimes bold when last edited user is current user
closes #2355

* fix: Allow starring of drafts

server/policies/document.js

@@ -23,7 +23,6 @@ allow(User, ["star", "unstar"], Document, (user, document) => {
   if (document.archivedAt) return false;
   if (document.deletedAt) return false;
   if (document.template) return false;
-  if (!document.publishedAt) return false;
 
   invariant(
     document.collection,