fix: Add missing redirects to product pages (#8863)

* add missing redirects to product pages

* Update app/_redirects

Co-authored-by: Fabian Rodriguez <[email protected]>

---------

Co-authored-by: Fabian Rodriguez <[email protected]>

Author: lena-larionova

app/_redirects

@@ -3705,3 +3705,8 @@
 /konnect/mesh-manager/federate-zone/    https://developer.konghq.com/mesh-manager/federate-zone/ 301
 /konnect/mesh-manager/migrate-zone/     https://developer.konghq.com/mesh-manager/migrate-zone/ 301
 /konnect/mesh-manager/service-mesh/     https://developer.konghq.com/mesh-manager/service-mesh/ 301
+
+/mesh/ https://developer.konghq.com/mesh/ 301
+/gateway/ https://developer.konghq.com/gateway/ 301
+/gateway-operator/ https://developer.konghq.com/operator/ 301
+/kubernetes-ingress-controller/ https://developer.konghq.com/kubernetes-ingress-controller/ 301