Expose edit and leave path for groups endpoint

app/serializers/group_entity.rb

 class GroupEntity < Grape::Entity
   include RequestAwareEntity
+  include MembersHelper
 
   expose :id, :name, :path, :description, :visibility
   expose :avatar_url
@@ -13,4 +14,12 @@ class GroupEntity < Grape::Entity
       group.group_members.find_by(user_id: request.current_user)&.access_level
     end
   end
+
+  expose :edit_path do |group|
+    edit_group_path(group)
+  end
+
+  expose :leave_path do |group|
+    leave_group_group_members_path(group)
+  end
 end