Update Bluesky.ts

Added a filter to only visible elements to reduce clutter from posts in feed.

src/engines/Bluesky.ts

@@ -39,6 +39,8 @@ export default class Bluesky extends ScrapeEngineBase {
       els = imgEls.filter((x) => x.src.indexOf("feed") != -1);
     }
     for (const el of els) {
+	  if(!isVisible(el)) continue;
+	  
       const post = new ScrapedPost();
       post.pageUrl = document.location.href;
       post.contentUrl = getFullSizeImg(el.src);
@@ -50,6 +52,8 @@ export default class Bluesky extends ScrapeEngineBase {
       document.querySelectorAll('video[poster^="https://video.bsky.app/watch"]')
     );
     for (const v of videoEls) {
+	  if(!isVisible(v)) continue;
+	  
       const poster = v.getAttribute("poster");
       if (!poster) continue;
 
@@ -102,3 +106,21 @@ export default class Bluesky extends ScrapeEngineBase {
     }
   }
 }
+
+/**
+ * A lightweight visibility check. We use this rather than IntersectionObserver
+ * because scrapeDocument is synchronous and must return immediately.
+ */
+function isVisible(el: Element): boolean {
+  const rect = el.getBoundingClientRect();
+  if (rect.width === 0 || rect.height === 0) return false;
+  if (rect.bottom <= 0 || rect.top >= window.innerHeight) return false;
+  if (rect.right <= 0 || rect.left >= window.innerWidth) return false;
+
+  const style = window.getComputedStyle(el);
+  if (style.display === "none") return false;
+  if (style.visibility === "hidden") return false;
+  if (style.opacity === "0") return false;
+
+  return true;
+}