feat(card): show the exact upload date inline after the relative time

There's room on the meta line, so append the precise date (locale-aware, e.g. '12 Jan
2017') after '9 yr ago' instead of hiding it in a tooltip.

frontend/src/components/VideoCard.tsx

@@ -227,7 +227,7 @@ function VideoCard({
   onChannelFilter?: (channelId: string, channelName: string) => void;
   onOpen?: (v: Video, startAt?: number | null) => void;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
   const watched = video.status === "watched";
   const meta = (
     <>
@@ -240,6 +240,16 @@ function VideoCard({
         </>
       )}
       {relativeTime(video.published_at)}
+      {video.published_at && (
+        <>
+          {" · "}
+          {new Date(video.published_at).toLocaleDateString(i18n.language, {
+            year: "numeric",
+            month: "short",
+            day: "numeric",
+          })}
+        </>
+      )}
     </>
   );
   const title = (