find_users_by_email view loads a page with search form and is linked to

app/templates/views/platform-admin/_base_template.html

@@ -20,6 +20,7 @@
           ('Email branding', url_for('main.email_branding')),
           ('Letter jobs', url_for('main.letter_jobs')),
           ('Inbound SMS numbers', url_for('main.inbound_sms_admin')),
+          ('Find users by email', url_for('main.find_users_by_email')),
           ('Email Complaints', url_for('main.platform_admin_list_complaints'))
         ] %}
           <li>