Change default language to en-US and add US language (#6621)

scripts/translations/validate_placeholders.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 """
-Validate that translation files have the same placeholders as en-GB (source of truth).
+Validate that translation files have the same placeholders as en-US (source of truth).
 
 Usage:
     python scripts/translations/validate_placeholders.py [--language LANG] [--fix]
@@ -38,16 +38,16 @@ def flatten_dict(d: dict, parent_key: str = "", sep: str = ".") -> Dict[str, str
 
 
 def validate_language(
-    en_gb_flat: Dict[str, str], lang_flat: Dict[str, str], lang_code: str
+    en_us_flat: Dict[str, str], lang_flat: Dict[str, str], lang_code: str
 ) -> List[Dict]:
-    """Validate placeholders for a language against en-GB."""
+    """Validate placeholders for a language against en-US."""
     issues = []
 
-    for key in en_gb_flat:
+    for key in en_us_flat:
         if key not in lang_flat:
             continue
 
-        en_placeholders = find_placeholders(en_gb_flat[key])
+        en_placeholders = find_placeholders(en_us_flat[key])
         lang_placeholders = find_placeholders(lang_flat[key])
 
         if en_placeholders != lang_placeholders:
@@ -59,7 +59,7 @@ def validate_language(
                 "key": key,
                 "missing": missing,
                 "extra": extra,
-                "en_text": en_gb_flat[key],
+                "en_text": en_us_flat[key],
                 "lang_text": lang_flat[key],
             }
             issues.append(issue)
@@ -113,26 +113,26 @@ def main():
 
     # Define paths
     locales_dir = Path("frontend/editor/public/locales")
-    en_gb_path = locales_dir / "en-GB" / "translation.toml"
+    en_us_path = locales_dir / "en-US" / "translation.toml"
 
-    if not en_gb_path.exists():
-        print(f"❌ Error: en-GB translation file not found at {en_gb_path}")
+    if not en_us_path.exists():
+        print(f"❌ Error: en-US translation file not found at {en_us_path}")
         sys.exit(1)
 
-    # Load en-GB (source of truth)
-    with open(en_gb_path, "rb") as f:
-        en_gb = tomllib.load(f)
+    # Load en-US (source of truth)
+    with open(en_us_path, "rb") as f:
+        en_us = tomllib.load(f)
 
-    en_gb_flat = flatten_dict(en_gb)
+    en_us_flat = flatten_dict(en_us)
 
     # Get list of languages to validate
     if args.language:
         languages = [args.language]
     else:
-        # Validate all languages except en-GB
+        # Validate all languages except en-US
         languages = []
         for d in locales_dir.iterdir():
-            if d.is_dir() and d.name != "en-GB":
+            if d.is_dir() and d.name != "en-US":
                 if (d / "translation.toml").exists():
                     languages.append(d.name)
 
@@ -151,7 +151,7 @@ def main():
             lang_data = tomllib.load(f)
 
         lang_flat = flatten_dict(lang_data)
-        issues = validate_language(en_gb_flat, lang_flat, lang_code)
+        issues = validate_language(en_us_flat, lang_flat, lang_code)
         all_issues.extend(issues)
 
     # Output results