Fix Docker build output path and serve with nginx base image

Dockerfile

@@ -16,10 +16,9 @@ COPY . .
 RUN yarn build
 
 
-FROM scratch
+FROM nginx:1.25-alpine
 
-WORKDIR /app
+# Copy compiled assets from the builder stage
+COPY --from=builder /app/dist/public /usr/share/nginx/html
 
-COPY --from=builder /app/build ./build
-
-CMD ["sh"]
+EXPOSE 80