Improve ISO list route UI

virtweb_frontend/src/dialogs/IsoCatalogDialog.tsx

@@ -1,5 +1,4 @@
 import {
-  Avatar,
   Button,
   Dialog,
   DialogActions,
@@ -27,7 +26,7 @@ export function IsoCatalogDialog(p: {
 
   return (
     <Dialog open={p.open} onClose={p.onClose}>
-      <DialogTitle>Iso catalog</DialogTitle>
+      <DialogTitle>ISO catalog</DialogTitle>
       <DialogContent>
         <AsyncWidget
           loadKey={1}
@@ -52,12 +51,13 @@ export function IsoCatalogDialogInner(p: {
     <List dense>
       {p.catalog.map((entry) => (
         <a
+          key={entry.name}
           href={entry.url}
           target="_blank"
           rel="noopener"
           style={{ color: "inherit", textDecoration: "none" }}
         >
-          <ListItem key={entry.name}>
+          <ListItem>
             <ListItemButton>
               <ListItemAvatar>
                 <img