fix(web): stop pdf viewer overflowing

apps/web/src/components/viewers/PdfViewer.tsx

@@ -21,7 +21,7 @@ export default function PdfViewer({ object }: { object: TTSObject }) {
   const proxied = pdfUrl(url);
 
   return (
-    <div className="space-y-3">
+    <div className="flex h-full min-h-0 flex-col gap-3">
       <div className="flex items-center justify-between gap-2">
         <p className="truncate font-mono text-xs text-zinc-500">{url}</p>
         <a
@@ -36,7 +36,7 @@ export default function PdfViewer({ object }: { object: TTSObject }) {
       <iframe
         src={proxied}
         title="PDF preview"
-        className="aspect-[3/4] w-full rounded-lg border border-zinc-800 bg-zinc-950"
+        className="min-h-0 w-full flex-1 rounded-lg border border-zinc-800 bg-zinc-950"
       />
     </div>
   );