[groups/epeople admin pages] hide add epeople/groups on new group page, redirect after group creation to add them

* Added check with Group.permanent on whether or not to show delete button
* Disabled groupName input field if group that is being edited is permanent
* Cancel edit group button sends you back to group registry now
* In group edit, cache only gets cleared of that groups subgroups and epersons cache (at member delete/add) instead of cleared of all groups info
* Separated search groups result list and list of subgroups in edit group page and eperson members of edit group page
* Fixed pagination after search issues in groups registry, group edit page (groups search, subgroups, epeople search and members)
* Applied same fixes to epeople registry
* Browse All button added to all group/eperson searches to browse all groups/epeople
* Fixed immediately being able to add members after group creation in edit group page
* Fixed hover i18n tags on groups & epeople registry page => Missing tags
* Fixed tests after changes

69111: Added list of groups that EPerson is member of in Edit EPerson form, linking to edit group page

69111: bug fix isMemberOf, notifications add/delete member/group, group count added to member count, bug fix disappearing group table in registry after leaving edit

Intermediate commit fixing merge