fix: json format (#84)

* Update extract_locale.py

* Apply Code Formatter Change

* Update locale_diff.py

* Apply Code Formatter Change

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Co-authored-by: fumiama <fumiama@users.noreply.github.com>

i18n/locale_diff.py

@@ -42,3 +42,4 @@ for lang_file in languages:
     # Save the updated language file
     with open(lang_file, "w", encoding="utf-8") as f:
         json.dump(lang_data, f, ensure_ascii=False, indent=4)
+        f.write("\n")