How to overwrite Standard Form with a Contact Form 7 Form ( Via hook in Reload Child Theme )?

If you want to keep the use of the icon with Contact Form 7, you can overwrite it via a filter function from e.g: Reload Child Theme. You can add the following function to your Child Theme functions.php file.

function grve_child_theme_my_form() {
    return do_shortcode( '[contact-form-7 id="4" title="Contact form 1"]' );
}
add_filter( 'grve_header_form', 'grve_child_theme_my_form' );

Just change the id with your contact form 7 id and it will replace the standard form with your form.