Implement total permission overhaul (#629)

* Implement total permission overhaul
Add explicit permissions on each flex and strict route
Patch issues with role escalation and CRUD of users
Patch permissions on all routes for coverage
Improve middleware to accept role array for clarity

* update comments

* remove permissions to API-keys for manager. Manager could generate API-key and using high-privelege api-key give themselves admin

* update sidebar permissions for multi-user and single user

* update options for mobile sidebar