update Dockerfile

Dockerfile

@@ -1,29 +1,11 @@
-# Stage 1: Build the React application
-FROM node:18-alpine AS builder
-
+FROM node:20-alpine AS build
 WORKDIR /app
-
-# Copy package files
 COPY package*.json ./
-
-# Install dependencies
-RUN npm ci
-
-# Copy all files
+RUN npm install
 COPY . .
-
-# Build the application
 RUN npm run build
 
-# Stage 2: Serve with Nginx
 FROM nginx:alpine
-
-# Copy the built React app to Nginx's html directory
-COPY --from=builder /app/dist /usr/share/nginx/html
-
-
-# Expose port 80
+COPY --from=build /app/build /usr/share/nginx/html
 EXPOSE 80
-
-# Start Nginx
 CMD ["nginx", "-g", "daemon off;"]