chore(i18n): update l10n for zh-Hant

Translated using Weblate (zh-Hant, Chinese (Traditional Han script))
Currently translated at 100.0% (197 of 197 strings)

chore(i18n): delete l10n for `ta`

Deleted translation using Weblate (ta, Tamil)

chore(i18n): delete l10n for `mn`

Deleted translation using Weblate (mn, Mongolian)

Co-authored-by: Rongrong <[email protected]>
Translate-URL: https://hosted.weblate.org/projects/rss-to-telegram-bot/glossary/zh_Hant/
Translation: RSS to Telegram Bot/RSS to Telegram Bot