Dockerfile from updates

Dockerfile

@@ -1,13 +1,13 @@
 # Step 1: Build the React application
-FROM node:14 AS build
+FROM node:20 AS build
 WORKDIR /usr/src/app
 COPY package*.json ./
 RUN npm install
 COPY . .
 RUN npm run build
 
 # Step 2: Serve the app using NGINX
-FROM nginx:stable-alpine
+FROM nginxinc/nginx-unprivileged:mainline
 RUN chmod -R g+rwx /var/cache/nginx /var/run /var/log/nginx
 RUN chown -R nginx:0 /usr/share/nginx/html && \
     chmod -R g+rwX /usr/share/nginx/html