all these changes

frontend/node_modules/core-js/internals/to-string.js

@@ -0,0 +1,9 @@
+'use strict';
+var classof = require('../internals/classof');
+
+var $String = String;
+
+module.exports = function (argument) {
+  if (classof(argument) === 'Symbol') throw new TypeError('Cannot convert a Symbol value to a string');
+  return $String(argument);
+};