* Allow disabling notifications per user and disabling specific notifications per use
closes#1974
* Add disable notifs for all users
* fix term generator for notifications
* sow checkboxes instead of multiselect when js is enabled
* remove js dependency
* fix notif conditions
* Add No JS support for notification seen toggle
* Invalidate cache when user toggles seen/massaction
* mark notif as seen after click
* add additional mass actions
* fix formatting
* add pav changes
* invalidate cache on new notifs