Lara portal integration for admin and author [#85078602]

 - A user that is an author in the portal can click 'edit' next to an
activity or sequence they own in the portal.

 - Open activity or sequence edit page in LARA in  a new tab.

 - Add matedit action to the external_activities and investigations
controller.

 - Add edit button to the DOM.

 - Add route for matedit.