Provide 2 options for task forms to the task form and the task form inside MyNintex

Now that we have integration with Nintex apps, sometimes we want the task form to appear in Apps. Sometimes we want it to appear in MyNintex if we're not using Apps. Currently clicking on a task form link via email is an all or nothing and this is set globally across the tenant.

If the workflow designer had two task form urls to select from, this allows for the above options.