Fix formatting of origins in search results view

The UI always formats origins with backslashes instead of slashes
and elides the leading backslash. The search results view failed
to honour this convention.

src/components/Results.tsx

@@ -86,7 +86,9 @@ function Result({ dataset }: { dataset: Dataset }) {
     .filter(Boolean)
     .join(', ')
 
-  const origins = (dataset.origins ?? []).join(', ')
+  const origins = (dataset.origins ?? [])
+    .map((origin) => origin.slice(1).split('/').join('\\'))
+    .join(', ')
 
   const onClick = useCallback(
     (event: React.MouseEvent<HTMLAnchorElement>) => {