feat: add new file

frontend/node_modules/react-smooth/es6/setRafTimeout.js

@@ -0,0 +1,19 @@
+function safeRequestAnimationFrame(callback) {
+  if (typeof requestAnimationFrame !== 'undefined') requestAnimationFrame(callback);
+}
+export default function setRafTimeout(callback) {
+  var timeout = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
+  var currTime = -1;
+  var shouldUpdate = function shouldUpdate(now) {
+    if (currTime < 0) {
+      currTime = now;
+    }
+    if (now - currTime > timeout) {
+      callback(now);
+      currTime = -1;
+    } else {
+      safeRequestAnimationFrame(shouldUpdate);
+    }
+  };
+  requestAnimationFrame(shouldUpdate);
+}