Enhancements and cleanup & new /translations route
Enhancements and cleanup & new /translations route

- Implemented central book data method - getBookDetails (was
‘isBookNumber’)
- Added convertBookToNT method to fetch NT-specific book info
- Fixed calculation of book index value in multiple methods
- Added /translations route
- Enhanced /books route to include book name, abbreviation, and index

balain/bible-rest