Add multi-version Bible support with ESV and NKJV translations

- Rename project from 'ESV Bible' to 'The Bible'
- Implement version selection dropdown in homepage header
- Add support for multiple Bible versions:
  * ESV (English Standard Version) - from mdbible
  * NKJV (New King James Version) - from local NKJV/ directory
- Update all API endpoints to accept version parameter (?version=esv|?version=nkjv)
- Add version-aware favorites system that stores and displays Bible version (e.g., 'Genesis 1:1 (ESV)')
- Update database schema to include version column in favorites table
- Maintain backward compatibility with existing data
- Update Docker configuration and documentation

backend/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "esv-bible-markdown",
+  "name": "the-bible-backend",
   "version": "1.0.0",
   "description": "ESV Bible in Markdown format served via Docker",
   "main": "src/index.js",