Fix tslib being required to run react-turnstile

[zImPatrick]

Currently you also need to install tslib to run react-turnstile, as importHelpers is enabled in tsconfig.json.
This is how the "compiled" version looks like with importHelpers enabled:

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");

Everything should still work while no longer needing to install tslib

[Le0Developer]

Thanks!