Reset chat message form after sending.

src/components/RoomChatForm.tsx

@@ -16,7 +16,7 @@ interface Fields {
 const RoomChatForm: FC<Props> = ({ roomName, loginUserName }) => {
   const dispatch = useDispatch();
 
-  const onSubmit = ({ message }: Fields) => {
+  const onSubmit = ({ message }: Fields, form: Form) => {
     dispatch(
       roomMessage({
         roomName,
@@ -24,7 +24,7 @@ const RoomChatForm: FC<Props> = ({ roomName, loginUserName }) => {
         message,
       })
     );
-    // TODO: reset form.
+    form.reset();
   };
 
   return (