fix(i18n): Complete and standardize all locale translations

[darkmice]

• Added missing translation keys across all language files
• Completed file_transfer lock translations for all locales
• Added missing control section translations (has/hasnot)
• Fixed inconsistent translations and improved accuracy
• Ensured all locale files match the English key structure
• Corrected grammar errors and typos in various languages
• Added broadcast_title, reconnecting, kicked translations
• Standardized translation quality across all supported languages

Languages updated: zh-cn, es-sp, fr-fr, de-de, ja-jp, ko-kr, ru-ru, fi-fi, sv-se, nb-no, sk-sk

[m1k1o]

I cannot verify any of it. But it looks good.