CODEOWNERS: add localization teams

Author: mitchellh

CODEOWNERS

@@ -78,6 +78,9 @@
 #   the GTK apprt. Also includes X11/Wayland integrations and general
 #   Linux support.
 #
+# - @ghostty-org/localization/* - Anything related to localization
+#   for a specific locale.
+#
 # - @ghostty-org/macos - The Ghostty macOS app and any macOS-specific
 #   features, configurations, etc.
 #
@@ -152,5 +155,11 @@
 /src/Surface.zig @ghostty-org/terminal
 /src/surface_mouse.zig @ghostty-org/terminal
 
+# Localization
+/po/README_TRANSLATORS.md @ghostty-org/localization
+/po/com.mitchellh.ghostty.pot @ghostty-org/localization
+/po/de_DE.UTF-8.po @ghostty-org/de_DE
+/po/zh_CN.UTF-8.po @ghostty-org/zh_CN
+
 # Packaging - Snap
 /snap/ @ghostty-org/snap