Basic reports page, returns 200 and is visible in PA sidebar

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

@@ -17,6 +17,7 @@
           ('Trial mode services', url_for('main.trial_services')),
           ('Organisations', url_for('main.organisations')),
           ('Providers', url_for('main.view_providers')),
+          ('Reports', url_for('main.platform_admin_reports')),
           ('Email branding', url_for('main.email_branding')),
           ('Letter branding', url_for('main.letter_branding')),
           ('Inbound SMS numbers', url_for('main.inbound_sms_admin')),