fix(nginx): Solve missing acmeRoot evaluation fail

Previously we read from the wrong property, using our in-processing host
rather than the nginx acmeRoot. While, again, this works fine for us,
it's possibly an even worse situation than before if you're not using
ACME DNS challenges and are instead trying to use HTTP

Change-Id: Id4fad368ec74cc8a7e8ee3148a81161f60e8755d
Reviewed-on: https://git.clicks.codes/c/Infra/NixFiles/+/815
Tested-by: Skyler Grey <minion@clicks.codes>
Reviewed-by: Skyler Grey <minion@clicks.codes>
diff --git a/modules/nixos/clicks/services/nginx/default.nix b/modules/nixos/clicks/services/nginx/default.nix
index d195f58..d90f4dd 100644
--- a/modules/nixos/clicks/services/nginx/default.nix
+++ b/modules/nixos/clicks/services/nginx/default.nix
@@ -25,12 +25,12 @@
     processedHosts = lib.clicks.nginx.http.internal.serviceTranslation cfg.hosts;
     hostsList = lib.attrsets.attrsToList processedHosts;
     nginxHosts = lib.attrsets.mapAttrs (_: host: lib.attrsets.removeAttrs host [ "authWith" "dnsProvider" ]) processedHosts;
-    acmeCerts = lib.attrsets.mapAttrs (_: host: {
+    acmeCerts = lib.attrsets.mapAttrs (name: host: {
       inherit (host) dnsProvider;
       webroot = if host.dnsProvider != null
                   then null
-                else if host.acmeRoot != null
-                  then host.acmeRoot
+                else if (config.services.nginx.virtualHosts.${name}.acmeRoot or null) != null
+                  then config.services.nginx.virtualHosts.${name}.acmeRoot
                 else config.security.acme.defaults.webroot;
     }) processedHosts;
     tailscaleAuthHosts = lib.pipe hostsList [