use raf to impl a more accurate timer and replay events async

src/replay/styles/style.css

@@ -0,0 +1,10 @@
+.replayer-wrapper {
+  position: relative;
+}
+.replayer-mouse {
+  position: absolute;
+  width: 20px;
+  height: 20px;
+  border-radius: 10px;
+  background: thistle;
+}