fix: copy 3dmodels directory to Nginx html folder in production build

Dockerfile

@@ -24,6 +24,7 @@ RUN npm run build
 FROM nginx:alpine AS production
 # Copy built assets from the build stage to Nginx
 COPY --from=build /app/dist /usr/share/nginx/html
+COPY --from=build /app/3dmodels /usr/share/nginx/html/3dmodels
 # Copy custom nginx config
 COPY nginx.conf /etc/nginx/conf.d/default.conf
 # Expose port 80 for Nginx