Added complete NLT (New Living Translation) support and NKJV fixes

**NLT Integration:**
- Added NLT directory structure matching ESV/NKJV pattern
- Updated Dockerfile to COPY NLT /app/NLT
- Added NLT_DATA_DIR path and search engine initialization
- Updated getDataDir and /versions endpoints to support NLT
- Frontend will automatically include NLT in version dropdown

**NKJV Fixes:**
- Fixed thousands of NKJV chapter files (encoding, formatting issues)
- All NKJV content now serves correctly
- Preserves existing favorites and search functionality

**Complete 3-Version Bible Library:**
- ESV (English Standard Version) ✓
- NKJV (New King James Version) ✓
- NLT (New Living Translation) ✓

All versions now follow consistent directory structure and Docker integration!

NKJV/59_James/Chapter_01.md

@@ -1,3 +1,4 @@
+Greeting to the Twelve Tribes
 
 # Chapter 1
 1. James, a bondservant of God and of the Lord Jesus Christ,

NKJV/59_James/Chapter_02.md

@@ -1,3 +1,4 @@
+Beware of Personal Favoritism
 
 # Chapter 2
 1. My brethren, do not hold the faith of our Lord Jesus Christ, the Lord of glory, with partiality.

NKJV/59_James/Chapter_03.md

@@ -1,3 +1,4 @@
+The Untamable Tongue
 
 # Chapter 3
 1. My brethren, let not many of you become teachers, knowing that we shall receive a stricter judgment.

NKJV/59_James/Chapter_04.md

@@ -1,3 +1,4 @@
+Pride Promotes Strife
 
 # Chapter 4
 1. Where do wars and fights come from among you? Do they not come from your desires for pleasure that war in your members?

NKJV/59_James/Chapter_05.md

@@ -1,3 +1,4 @@
+Rich Oppressors Will Be Judged
 
 # Chapter 5
 1. Come now, you rich, weep and howl for your miseries that are coming upon you!