Fix path to login icons (#2195)

Author: jace

funnel/templates/password_login_form.html.jinja2

@@ -74,7 +74,7 @@
            href="{{ url_for('login_service', service=provider_name) }}"
            data-ga="login using {{ provider_name }}"
            aria-label="{% trans title=provider.title %}Login using {{ title }}{% endtrans %}">
-          <img src="{{ url_for('static', filename='img/' + provider_name + '.svg') }}"
+          <img src="{{ url_for('static', filename='img/login/' + provider_name + '.svg') }}"
                alt="{{ provider.title }}"
                aria-hidden="true"/>
         </a>