feat: add zenith display config

modules/infra.nix

@@ -75,6 +75,18 @@ in
         "kiri"
         "ergon"
       ];
+      displays = {
+        "California Institute of Technology 0x1410 Unknown" = {
+          primary = true;
+          position.x = 0;
+          position.y = 0;
+          mode = {
+            width = 3072;
+            height = 1920;
+            refresh = 120.002;
+          };
+        };
+      };
       users = {
         kiri = kiriAccount;
         ergon = ergonAccount;