Adding new "VIEW_MEMBERS" permissions restrict the scope of users visibility (#10487)

* MM-14138: Adding new "VIEW_MEMBERS" permissions restrict the scope of users visibility

* Fixing gofmt

* Fixing broken tests

* Addressing PR review comments from Miguel de la Cruz

* Removed hack

* A bit nicer and cleaner code in the UserBelongsToChannels function

* Adding cluster cache invalidation for user team ids

* Checking in the correct order permissions to not leek existency information

* Adding restrictions to TeamMembers and User status requests

* Fixing tests

* Fixing status endpoint permissions checks

* Adding more tests

* Fixing tests

* More tests and making the restrictions query based only on joins

* Adding more tests

* Adding more tests

* fixing merge problems

* Reverting status changes to avoid performance issues

* Adding more tests

* Fixing test

* i18n extract

* Adding extra method for get restrictions for a team

* Add the new elasticsearch functions to search users with restrictions

* Add missing translation string

* Rename restrictedChannelIds to restrictedToChannels

* Remove ToDo

* Adding the permission to the SystemAdmin role during permissions migrations

app/notification.go

@@ -125,7 +125,7 @@ func (a *App) SendNotifications(post *model.Post, team *model.Team, channel *mod
 		}
 
 		if len(m.OtherPotentialMentions) > 0 && !post.IsSystemMessage() {
-			if result := <-a.Srv.Store.User().GetProfilesByUsernames(m.OtherPotentialMentions, team.Id); result.Err == nil {
+			if result := <-a.Srv.Store.User().GetProfilesByUsernames(m.OtherPotentialMentions, &model.ViewUsersRestrictions{Teams: []string{team.Id}}); result.Err == nil {
 				channelMentions := model.UserSlice(result.Data.([]*model.User)).FilterByActive(true)
 
 				var outOfChannelMentions model.UserSlice