fix: use isActive instead of chatPanelOpen in ChatMessageView so messages load on /chat page

frontend/src/contexts/ChatContext.tsx

@@ -12,6 +12,7 @@ interface ChatContextType {
   selectRoom: (token: string | null) => void;
   connected: boolean;
   loginName: string | null;
+  isActive: boolean;
 }
 
 const ChatContext = createContext<ChatContextType | undefined>(undefined);
@@ -119,6 +120,7 @@ export const ChatProvider: React.FC<ChatProviderProps> = ({ children }) => {
     selectRoom,
     connected,
     loginName,
+    isActive,
   };
 
   return <ChatContext.Provider value={value}>{children}</ChatContext.Provider>;