Add pwa support

Tesses.YouTubeDownloader.Server/src/components/queuesz.tcross

@@ -0,0 +1,12 @@
+
+func Components.QueueSZ(tytd)
+{
+    var vid = tytd.CurrentVideo;
+    tytd.Mutex.Lock();
+
+
+    var html = <span hx-trigger="every 5000ms" hx-target="this" hx-push-url="false" hx-indicator="none" hx-get="./queue-size"  hx-swap="outerHTML" class="badge">{tytd.VideoQueueCount}</span>;
+
+    tytd.Mutex.Unlock();
+    return html;
+}