라우팅 추가 및 CSS 구성

- 개인 블로그
 - 로또
 - 여행

로고 이미지 추가 및 변경

src/components/Navbar.jsx

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+import React from 'react';
+import { NavLink } from 'react-router-dom';
+import { navLinks } from '../routes.jsx';
+import mainLogo from '../assets/main_logo.png';
+import './Navbar.css';
+
+const Navbar = () => {
+    return (
+        <header className="site-nav">
+            <div className="site-nav__inner">
+                <div className="site-nav__brand">
+                    <img src={mainLogo} alt="Logo" className="site-nav__logo-image" />
+                    <div>
+                        <p className="site-nav__title">Jaeoh Archive</p>
+                        <p className="site-nav__subtitle">Stories, notes, and snapshots</p>
+                    </div>
+                </div>
+                <nav className="site-nav__links">
+                    {navLinks.map((link) => (
+                        <NavLink
+                            key={link.id}
+                            to={link.path}
+                            className={({ isActive }) =>
+                                `site-nav__link${isActive ? ' is-active' : ''}`
+                            }
+                        >
+                            {link.label}
+                        </NavLink>
+                    ))}
+                </nav>
+            </div>
+        </header>
+    );
+};
+
+export default Navbar;