add all frontend files

node_modules/rc-picker/es/PickerInput/Selector/Icon.js

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+import _extends from "@babel/runtime/helpers/esm/extends";
+import _objectWithoutProperties from "@babel/runtime/helpers/esm/objectWithoutProperties";
+var _excluded = ["icon", "type"],
+  _excluded2 = ["onClear"];
+import * as React from 'react';
+import PickerContext from "../context";
+export default function Icon(props) {
+  var icon = props.icon,
+    type = props.type,
+    restProps = _objectWithoutProperties(props, _excluded);
+  var _React$useContext = React.useContext(PickerContext),
+    prefixCls = _React$useContext.prefixCls;
+  return icon ? /*#__PURE__*/React.createElement("span", _extends({
+    className: "".concat(prefixCls, "-").concat(type)
+  }, restProps), icon) : null;
+}
+export function ClearIcon(_ref) {
+  var onClear = _ref.onClear,
+    restProps = _objectWithoutProperties(_ref, _excluded2);
+  return /*#__PURE__*/React.createElement(Icon, _extends({}, restProps, {
+    type: "clear",
+    role: "button",
+    onMouseDown: function onMouseDown(e) {
+      e.preventDefault();
+    },
+    onClick: function onClick(e) {
+      e.stopPropagation();
+      onClear();
+    }
+  }));
+}