fix: usr: fixed init of multiple tinymce editors (refs #119)
fix: usr: fixed init of multiple tinymce editors (refs #119)

Refactored the TinyMCE editor inizialization detection for adding the
toolbar buttons; now it works also for issue notes.
Fixed also some trouble in inserting macro code after editing.

mikitex70/redmine_drawio,mikitex70/redmine_drawio,mikitex70/redmine_drawio