GRN2-260: Added the ability to merge user accounts (#938)

* Added the ability to merge user accounts

* Styling fixes

app/models/ability.rb

@@ -36,7 +36,7 @@ class Ability
 
       if highest_role.get_permission("can_manage_users")
         can [:index, :roles, :edit_user, :promote, :demote, :ban_user, :unban_user,
-             :approve, :invite, :reset, :undelete], :admin
+             :approve, :invite, :reset, :undelete, :merge_user], :admin
       end
 
       can [:index, :server_recordings, :server_rooms], :admin if highest_role.get_permission("can_manage_rooms_recordings")

app/models/room.rb

@@ -60,6 +60,11 @@ class Room < ApplicationRecord
     user.rooms.include?(self)
   end
 
+  # Determines whether room is a home room
+  def home_room?
+    owner.main_room == self
+  end
+
   def shared_users
     User.where(id: shared_access.pluck(:user_id))
   end