fix Dockerfile

Dockerfile

@@ -18,8 +18,8 @@ RUN npm install -g pm2
 FROM node:20-alpine
 
 # Create necessary directories with write permissions
-WORKDIR /app
-RUN mkdir -p /tmp/.next/cache/images && chown -R node:node /tmp/app
+WORKDIR /tmp
+RUN mkdir -p /tmp/app/.next/cache/images && chown -R node:node /tmp/app/.next/cache/images
 
 # Copy the Next.js build and node_modules from the builder stage
 COPY --from=builder /app /tmp/app