Add a way to reset password

backend/templates/ask_reset_password.html

@@ -2,7 +2,7 @@
 
 {% block main_container %}
     <div class="content">
-        <form action="/signup" method="post">
+        <form action="/ask_reset_password" method="post">
             <label for="email_field">Your email address</label>
             <input id="email_field" type="text" name="email" value="{{ email }}" autocapitalize="none" autocomplete="email" autofocus="autofocus" />
             {{ message_email }}