feat: outlook button on verify email

portal/templates/portal/email_verification_needed.html

@@ -12,6 +12,8 @@ <h4>We need to verify your email address</h4>
     <div>
         <a target="_blank" href="https://mail.google.com/mail/#search/from%3Ano-reply%40codeforlife.education+subject%3AEmail+Verification"
            class="button button--home button-email">Open in Gmail</a>
+        <a target="_blank" href="https://outlook.live.com/mail/"
+           class="button button--home button-email">Open in Outlook</a>
     </div>
     <p class="text-left"><a id="home_button" href="{% url 'home' %}">&lt; back to homepage</a></p>
 {% endblock form_content %}