Replace join by Intl object

components/teks/teks.js

@@ -118,6 +118,7 @@ export default function Teks({anTeks, komante, open, success, error, setSuccess,
   const isMobile = useMediaQuery('(max-width:800px)')
   const {data: session} = useSession()
   const langArray = langToArray(anTeks)
+  const awtis = anTeks.awtis.map(({alias}) => alias)
 
   return (
     <Root>
@@ -127,7 +128,7 @@ export default function Teks({anTeks, komante, open, success, error, setSuccess,
       <Box sx={{textAlign: 'center', marginTop: 8}}>
         <Typography style={{marginTop: '0.8em'}} variant='h4' display='block'>
           <Typography gutterBottom variant='h6'>
-            {anTeks.awtis.map(a => a.alias).join(', ')}
+            {new Intl.ListFormat('fr').format(awtis)}
           </Typography>
           <Typography variant='h5'>
             {anTeks.tit}