fix: add next.config.js file to docker context

Dockerfile

@@ -6,7 +6,7 @@ WORKDIR /app
 
 # Install dependencies based on the preferred package manager
 COPY package.json package-lock.json* ./
-RUN npm ci
+RUN npm ci --production
 
 # Rebuild the source code only when needed
 FROM base AS builder
@@ -30,6 +30,7 @@ RUN adduser --system --uid 1001 nextjs
 
 COPY --from=builder /app/public ./public
 COPY --from=builder /app/prisma ./prisma
+COPY --from=builder /app/next.config.js ./next.config.js
 
 # Set the correct permission for prerender cache
 RUN mkdir .next