Fix: 강제 하단 스크롤 이동 버그 수정

Author: twkim-0501

src/hooks/chat/useBodyScrollControllerEffect.tsx

@@ -44,6 +44,7 @@ export default (
     chatBodyRef.current.scrollTop = scrollTop;
   }, [chats]);
 
+  const lastChat = chats.length > 0 ? chats[chats.length - 1] : {};
   useEffect(() => {
     socketReady(() =>
       axios({
@@ -52,7 +53,7 @@ export default (
         data: { roomId },
       })
     );
-  }, [chats.length]);
+  }, ["time" in lastChat ? lastChat?.time : ""]);
 
   useEffect(() => {
     const chatBody = chatBodyRef?.current;

src/hooks/chat/useSocketChatEffect.tsx

@@ -134,7 +134,7 @@ export default (
           }
         },
         updateListener: (_roomId: string) => {
-          if (roomId !== _roomId) return;
+          if (isExpired || roomId !== _roomId) return;
           fetchRoomInfo();
         },
       });
@@ -150,5 +150,5 @@ export default (
       isExpired = true;
       resetSocketEventListener();
     };
-  }, [roomInfo, setChats, setDisplayNewMessage]);
+  }, [roomInfo?._id, setChats, setDisplayNewMessage]);
 };