feat(common): set timezone to America/New_York

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: eapolinario

nixos/modules/common/default.nix

@@ -32,6 +32,8 @@
     ];
   };
 
+  time.timeZone = "America/New_York";
+
   security.sudo.wheelNeedsPassword = false;
 
   fonts = {