disable auto language detection;

disable languuage switch for now;
Tweak some error logs and messages

pages/api/data/[...nextcrud].ts

@@ -33,6 +33,7 @@ const handler = async (req: NextApiRequest, res: NextApiResponse) => {
     if (req.method === 'DELETE') {
       switch (targetTable) {
         case 'publishers':
+        case 'availabilities':
           const targetId = req.query.nextcrud[1];
           logger.info('[nextCrud] ' + targetTable + ': ' + targetId + ' DELETED  by ' + session.user.email);
           break;