feat(user): add forgot password templates (form + emai)

webapp/templates/app_emails/forgot-password.html.twig

webapp/templates/app_emails/forgot-password.subject.txt.twig

webapp/templates/user/forgot_passord_form.html.twig

...p/templates/user/forgot_passord_not_valid_token.html.twig

webapp/templates/user/forgot_passord_request_form.html.twig

...pp/templates/user/forgot_passord_request_result.html.twig