GIF fix for safari

src/lib/pdsfetch.ts

···
         }
         break;
       case "app.bsky.embed.external": // assuming that external embeds are gifs for now
-        this.gifLink = post.embed.external.uri;
+        if (post.embed.external.uri.includes(".gif")) {
+          this.gifLink = post.embed.external.uri;
+        }
         break;
     }
   }