Add move and remove to edit route

Add the move and remove functionality previously just in the create
route to the edit route. This duplicates the functionality in both
routes ready to be removed in later commits.
Merge dashboard form routes

Merge the edit and create dashboard form displaying routes;
/administer-dashboard/new
/administer-dashboard/<uuid>

They do essentially the same thing.
Merge dashboard create and update routes

Merge the create and update dashboard routes;
POST /administer-dashboar
POST /administer-dashboar/<uuid>