Add of pangolin client, fix roundcube and vaultwarden, refractor some bit

module/tailscale.nix

@@ -0,0 +1,20 @@
+ {config,lib, ... }:
+
+{
+  services.tailscale = {
+	  enable = true;
+	  extraDaemonFlags = [
+	  	"--no-logs-no-support"
+	  ];
+
+	  extraSetFlags = [
+	  	"--ssh=false"
+	  ];
+	  useRoutingFeatures = "server";  # or "client" / "both"
+	};
+
+  networking.firewall = {
+    allowedTCPPorts = [ 443 ];
+    allowedUDPPorts = [ 41641 3478 ];
+  };
+}