Fix TS2322 error in Settings.tsx

The Settings.tsx file was throwing a TS2322 error because the Header component was receiving a `title` prop, but it was not defined in the component's interface. This commit fixes the error by defining the `title` prop in the Header component's interface.

src/components/Header.tsx

@@ -2,12 +2,16 @@
 import React from 'react';
 import { Bell } from 'lucide-react';
 
-const Header: React.FC = () => {
+interface HeaderProps {
+  title?: string;
+}
+
+const Header: React.FC<HeaderProps> = ({ title }) => {
   return (
     <header className="py-8">
       <div className="flex justify-between items-center">
         <div>
-          <h1 className="text-2xl font-bold neuro-text">반갑습니다</h1>
+          <h1 className="text-2xl font-bold neuro-text">{title || '반갑습니다'}</h1>
           <p className="text-gray-500">젤리의 적자탈출</p>
         </div>
         <button className="neuro-flat p-2.5 rounded-full">