feat: rewrite to Next.js v13 app directory

Improvements:
- Hide switch theme input (ugly little white square)
- i18n without subpath (e.g: /fr or /en), same url whatever the locale used

components/Profile/ProfileInfo.tsx

@@ -1,14 +1,16 @@
-import useTranslation from 'next-translate/useTranslation'
+import { getI18n } from '@/i18n/i18n.server'
 
 export const ProfileInformation: React.FC = () => {
-  const { t } = useTranslation()
+  const i18n = getI18n()
 
   return (
     <div className='mb-6 border-b-2 border-gray-600 pb-2 font-headline dark:border-gray-400'>
       <h1 className='mb-2 text-4xl font-semibold text-yellow dark:text-yellow-dark'>
         Théo LUDWIG
       </h1>
-      <h2 className='mb-3 text-base'>{t('home:about.description')}</h2>
+      <h2 className='mb-3 text-base'>
+        {i18n.translate('home.about.description')}
+      </h2>
     </div>
   )
 }