Major changes:
- New URL structure: /version/esv/book/Genesis/chapter/1 instead of /book/Genesis/chapter/1?version=esv
- Version extracted from URL path instead of query parameters
- Component pages restructured: VersionPage, BookListPage, BookPage, ChapterPage
- Navigation updated throughout to use new path structure
- Routes updated to match new hierarchical structure
- Breadcrumb navigation fixed for new paths
- Version selector dropdown now navigates between versions
This eliminates query parameter state management issues and provides clean, RESTful URLs
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