added translation to message settings page

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/routes/user/Profile.svelte

@@ -14,7 +14,7 @@
     <legend>
         {t('your_profile')}
         <button onclick={() => router.navigate(`/user/${user.id}/edit`)}>{t('edit')}</button>
-        <!-- <button onclick={() => router.navigate(`/message/settings`)}>{t('settings')}</button> -->
+        <button onclick={() => router.navigate(`/message/settings`)}>{t('notification settings')}</button>
 
     </legend>
     <table>