chore: update gateway URL configuration for staging environment

- Changed GW_URL and GwUrl in frontoffice-deployment.yaml and Dockerfile to use the internal service URL http://cms-svc:8080 for the staging environment.
- Enhanced ConfigureServices to handle HTTP/1.1 for gRPC when using the internal service URL, ensuring compatibility with Kestrel's requirements.

k8s/staging/frontoffice-deployment.yaml

@@ -29,9 +29,9 @@ spec:
             - name: ASPNETCORE_ENVIRONMENT
               value: "Staging"
             - name: GW_URL
-              value: "https://cms.se.kbs1.ir"
+              value: "http://cms-svc:8080"
             - name: GwUrl
-              value: "https://cms.se.kbs1.ir"
+              value: "http://cms-svc:8080"
           resources:
             requests:
               memory: "256Mi"