Installer: Make Private network optional

Change-Id: Ic7a2e5250a42dc03de2416b1e2a0d1bbca3f010c
diff --git a/core/installer/values-tmpl/penpot.cue b/core/installer/values-tmpl/penpot.cue
index cad8227..82caba7 100644
--- a/core/installer/values-tmpl/penpot.cue
+++ b/core/installer/values-tmpl/penpot.cue
@@ -144,7 +144,7 @@
 				providers: {
 					oidc: {
 						enabled: true
-						baseURI: "https://hydra.\(global.domain)"
+						baseURI: "https://hydra.\(networks.public.domain)"
 						clientID: ""
 						clientSecret: ""
 						authURI: ""