feat: create content layout with emotion

inertia/components/navbar/navbar.tsx

@@ -0,0 +1,72 @@
+import styled from '@emotion/styled';
+import { Link } from '@inertiajs/react';
+import ExternalLink from '~/components/common/external_link';
+import RoundedImage from '~/components/common/rounded_image';
+import UnstyledList from '~/components/common/unstyled/unstyled_list';
+import useUser from '~/hooks/use_user';
+import PATHS from '../../../app/constants/paths';
+
+type NavbarListDirection = {
+  right?: boolean;
+};
+
+const Nav = styled.nav({
+  width: '100%',
+  padding: '0.75em 0',
+  display: 'flex',
+  alignItems: 'center',
+});
+
+const NavList = styled(UnstyledList)<NavbarListDirection>(({ theme, right }) => ({
+  display: 'flex',
+  flex: 1,
+  gap: '1.5em',
+  justifyContent: right ? 'flex-end' : 'flex-start',
+  transition: theme.transition.delay,
+}));
+
+const UserCard = styled.div({
+  display: 'flex',
+  gap: '0.35em',
+  alignItems: 'center',
+  justifyContent: 'center',
+});
+
+export default function Navbar() {
+  const { isAuthenticated, user } = useUser();
+  return (
+    <Nav>
+      <NavList>
+        <li>
+          <Link href={PATHS.HOME} css={{ fontSize: '24px' }}>
+            MyLinks
+          </Link>
+        </li>
+      </NavList>
+      <NavList right>
+        <li>
+          <select>
+            <option>EN</option>
+          </select>
+        </li>
+        <li>
+          <ExternalLink href={PATHS.REPO_GITHUB}>GitHub</ExternalLink>
+        </li>
+        {isAuthenticated && !!user ? (
+          <li>
+            <a href={PATHS.AUTH.LOGOUT}>
+              <UserCard>
+                <RoundedImage src={user.avatarUrl} width={22} referrerPolicy="no-referrer" />
+                {user.nickName}
+              </UserCard>
+            </a>
+          </li>
+        ) : (
+          <li>
+            <Link href={PATHS.AUTH.LOGIN}>Login</Link>
+          </li>
+        )}
+      </NavList>
+    </Nav>
+  );
+}