Clean up, merge and update zh, zh-hant, zh-tw translations in mediawiki/core.
Merge zh-tw translations back to zh-hant, update zh, zh-hant, zh-tw translations and adding missing aliases in php file (namespace/special page/magic words names and aliases) in mediawiki/core.
- Merge zh-tw translations back to zh-hant
- Merge zh-tw namespace aliases
- Merge zh-tw special page names
- Merge zh-tw special page aliases
- Update zh-hant namespace names
- Update zh-hant namespace aliases
- Update zh-hant special page names
- Update zh-hant special page aliases
- Adding zh-hant translations as aliases to zh for fallback issues
- Update zh namespace aliases
- Update zh special page aliases
- Update zh magic word default names
- Update zh magic word aliases
- Adding zh magic word default names (intended to be in en)
- Adding zh magic word aliases