add all frontend files

node_modules/antd/es/steps/style/horizontal.js

@@ -0,0 +1,14 @@
+const genHorizontalStyle = token => {
+  const {
+    componentCls
+  } = token;
+  const stepsItemCls = `${componentCls}-item`; // .ant-steps-item
+  return {
+    [`${componentCls}-horizontal`]: {
+      [`${stepsItemCls}-tail`]: {
+        transform: 'translateY(-50%)'
+      }
+    }
+  };
+};
+export default genHorizontalStyle;