Updated sync_translations.py to detect and optionally remove ignore entries referencing non-existent keys in the reference translation. Cleaned up scripts/ignore_locales.toml by removing many obsolete ignore entries, reducing maintenance overhead and improving accuracy.
Refactors and extends .github/scripts/sync_translations.py to support reading, updating, and cleaning up ignored translation keys via scripts/ignore_locales.toml. Now, when a previously ignored key is translated, it is automatically removed from the ignore list. Also updates the de-DE translation.json to move the 'mobile' section and adjusts formatting in ignore_locales.toml.
Improves .github/scripts/sync_translations.py with clearer docstrings, better reporting, and more robust handling of missing/extra translation keys. Adds scripts/ignore_locales.toml to specify keys/paths to ignore during locale synchronization checks.
