rename nodes and add runner for gitea instance

modules/gitea/thea/default.nix

@@ -0,0 +1,10 @@
+{nodes, ...}:{
+  imports = [
+    ./virtualisation.nix
+  ];
+  networking.nat.forwardPorts = [{
+    sourcePort = nodes.sin.config.services.gitea.settings.server.SSH_PORT;
+    proto = "tcp";
+    destination = "10.0.0.4:22";  
+  }];
+}