rework sidemenu + fix no categories / links

components/Categories/UserCard.tsx

@@ -0,0 +1,23 @@
+import { Session } from 'next-auth';
+import { signOut } from 'next-auth/react';
+import Image from 'next/image';
+import styles from '../../styles/home/categories.module.scss';
+
+export default function UserCard({ session }: { session: Session; }) {
+    return (
+        <div className={styles['user-card-wrapper']}>
+            <div className={styles['user-card']}>
+                <Image
+                    src={session.user.image}
+                    width={28}
+                    height={28}
+                    alt={`${session.user.name}'s avatar`}
+                />
+                {session.user.name}
+            </div>
+            <button onClick={() => signOut()} className={styles['disconnect-btn']}>
+                Se déconnecter
+            </button>
+        </div>
+    )
+}