- Dedicated Database: Add MariaDB ports

- Songsheet: Update the compose comments, as the database uses the dedicated database
- General: Re-added Librewolf onto the module.

nix-system-configs/database/configuration.nix

@@ -158,7 +158,7 @@
   services.openssh.enable = true;
 
   # Open ports in the firewall.
-  networking.firewall.allowedTCPPorts = [5432]; # PostgreSQL default port
+  networking.firewall.allowedTCPPorts = [5432 3306]; # PostgreSQL default port
   # networking.firewall.allowedUDPPorts = [ ... ];
   # Or disable the firewall altogether.
   # networking.firewall.enable = false;