Delay manual snapshot refresh

frigate_camera_control_bridge/static/app.js

@@ -1,3 +1,5 @@
+const SNAPSHOT_REFRESH_DELAY_MS = 2000;
+
 function formatRemaining(totalSeconds) {
   const seconds = Math.max(0, Math.ceil(totalSeconds));
   const minutes = Math.floor(seconds / 60);
@@ -122,7 +124,9 @@ function refreshSnapshot(button) {
   button.setAttribute("aria-busy", "true");
   image.addEventListener("load", cleanup, { once: true });
   image.addEventListener("error", cleanup, { once: true });
-  image.src = url.toString();
+  window.setTimeout(() => {
+    image.src = url.toString();
+  }, SNAPSHOT_REFRESH_DELAY_MS);
 }
 
 document.addEventListener("click", (event) => {