### What problem does this PR solve?
Feat: Modify the data structure of the chunk in the conversation #3909
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Add native translation in locales for Japanese 🇯🇵 to support new local
language
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
Co-authored-by: Hiroshi Kameya <kameya_h@sunflare.co.jp>
