fix: Add defaultBackend to Ingress for direct LB IP access without Host header

Author: pratik50

k8s/ingress.yaml

@@ -17,4 +17,9 @@ spec:
               service:
                 name: receiptsnap-backend-svc
                 port:
-                  number: 80
+                  number: 80
+  defaultBackend:
+    service:
+      name: receiptsnap-backend-svc
+      port:
+        number: 80