FE: Settings access global permission + tweaks (#21460)

* settings global permission

* fix specs

* Enforce Setting permissions (cont) (#21464)

* settings global permission

* more api permissions enforcement

* only admin could call token checks

* address Noah's comments

* clean ns

* clean ns 



Co-authored-by: Aleksandr Lesnenko <alxnddr@gmail.com>

* hide subscriptions buttons for users with no permissions

* fix specs

* review fixes

* update spec

Co-authored-by: Ngoc Khuat <qn.khuat@gmail.com>