Added selfservice with trailing slash redirect

docker-compose/full_stack/nginx.conf

@@ -78,5 +78,10 @@ http {
             proxy_set_header   X-Forwarded-Proto $scheme;
             proxy_set_header   X-Forwarded-Host $server_name;
         }
+
+        #Redirect selfservice without trailing slash to selfservice/
+        location =/selfservice{
+            return 301 /selfservice/;
+        }
     }
 }