implement room order

backend/src/graphql/rooms.ts

@@ -14,7 +14,7 @@ export const createRoomMutation = () => {
 export const roomQuery = () => {
   return gql`
     query Room($first: Int, $offset: Int, $id: ID) {
-      Room(first: $first, offset: $offset, id: $id) {
+      Room(first: $first, offset: $offset, id: $id, orderBy: createdAt_desc) {
         id
         roomId
         roomName

backend/src/schema/types/type/Room.gql

@@ -5,6 +5,11 @@
 #   users_some: _UserFilter
 # }
 
+# TODO change this to last message date
+enum _RoomOrdering {
+  createdAt_desc
+}
+
 type Room {
   id: ID!
   createdAt: String
@@ -24,5 +29,8 @@ type Mutation {
 }
 
 type Query {
-  Room(id: ID): [Room]
+  Room(
+    id: ID
+    orderBy: [_RoomOrdering]
+  ): [Room]
 }