Updated Docker to use local ESV copy instead of external mdbible clone

- **ESV data source**: Switched from external mdbible GitHub repo to local ESV directory
- **Removed git clone**: No longer cloning from https://github.com/lguenth/mdbible.git
- **Local ESV copy**: Now COPY ESV /app/bible-data instead of external pull
- **Removed git dependency**: Cleaned up unnecessary git install in Dockerfile
- **Updated comments**: Backend now correctly marked ESV as 'local files'

Both ESV and NKJV now served from local repository files in Docker container!

Dockerfile

@@ -1,8 +1,7 @@
 # Multi-stage Dockerfile for production deployment
 FROM node:18-alpine AS base
 
-# Install git for cloning bible repository
-RUN apk add --no-cache git
+# Production stage
 
 # Backend stage
 FROM base AS backend
@@ -39,11 +38,8 @@ COPY --from=frontend-build /app/frontend/build ./frontend/build
 # Copy docker-compose configuration
 COPY docker-compose.yml ./
 
-# Clone ESV Bible repository
-RUN git clone https://github.com/lguenth/mdbible.git /tmp/mdbible && \
-    mkdir -p /app/bible-data && \
-    cp -r /tmp/mdbible/by_chapter/* /app/bible-data/ && \
-    rm -rf /tmp/mdbible
+# Copy ESV Bible data from repository
+COPY ESV /app/bible-data
 
 # Copy NKJV Bible data from repository
 COPY NKJV /app/NKJV