feat: group permissions

client/graph/admin/groups/groups-query-list.gql

@@ -3,6 +3,7 @@ query {
     list {
       id
       name
+      isSystem
       userCount
       createdAt
       updatedAt

client/graph/admin/groups/groups-query-single.gql

@@ -3,7 +3,9 @@ query ($id: Int!) {
     single(id: $id) {
       id
       name
-      rights {
+      isSystem
+      permissions
+      pageRules {
         id
         path
         role