Clean up parameters in locale files

[bee0511]

Proposed change

1. I have removed deprecated keys from different language files based on en.yaml as the standard, and added unused keys in English. I also sorted these keys in the same way as en.yaml to facilitate future comparisons.
2. I have written the script used for comparison into nettacker/locale/sync.py for easier future comparisons.

Resolves #1044

Type of change

• [ ] New core framework functionality
• [ ] Bugfix (non-breaking change which fixes an issue)
• [ ] Code refactoring without any functionality changes
• [ ] New or existing module/payload change
• [x] Localization improvement
• [ ] Dependency upgrade
• [ ] Documentation improvement

Checklist

• [x] I've followed the contributing guidelines
• [x] I've run make pre-commit, it didn't generate any changes
• [x] I've run make test, all tests passed locally