remove useless rootMargin

app/src/components/VideoScroll.vue

@@ -57,7 +57,7 @@ export default defineComponent({
             element.classList.remove("visible");
           }
         });
-      }, {rootMargin: "100px"});
+      });
       Array.from((root.value as Element).children).forEach((el) => {
         observer.observe(el);
       });