Integrate the captcha component with the reactive forms

[AlexITC]

The captcha component is not integrated with the reactive forms.

Expected behavior

We should be able to keep disabled the submit button on reactive forms is the captcha hasn't been solved.

Actual behavior

The captcha component is not integrated with reactive forms, which implies that it is not considered as a form element, leading to the submit button being clickable even is the captcha hasn't been solved.

Example:

As concisely as possible, describe the observed behavior.

Steps to reproduce the behavior

1. Go to the login page (https://cryptocoinalerts.net/login).
2. Type a valid email and password.
3. The login button is enabled while it shouldn't because the captcha isn't solved.Please list all relevant steps to reproduce the observed behavior.