added github action

Dockerfile

@@ -0,0 +1,29 @@
+# Build stage
+FROM node:18-alpine AS build
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Copy source code
+COPY . .
+
+# Build the app
+RUN npm run build
+
+# Production stage
+FROM nginx:alpine
+
+# Copy built app from build stage
+COPY --from=build /app/build /usr/share/nginx/html
+
+# Expose port 80
+EXPOSE 80
+
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]