build: modify dockerfile to serve demo instance as static webpage

Dockerfile

@@ -1,20 +1,37 @@
-FROM node:lts-alpine
+FROM node:lts-alpine AS builder
 
 RUN apk add --no-cache --update git
 
 WORKDIR /app
 COPY package*.json ./
 RUN npm ci
-
-WORKDIR /app/server
-COPY server/package*.json ./
-RUN npm ci
-COPY server/prisma/schema.prisma ./prisma/schema.prisma
-RUN npx prisma generate
-
-WORKDIR /app
 COPY ./ ./
 RUN npm run build
 
-WORKDIR /app/server
-CMD ["node", "index.js"]
+FROM nginx
+COPY <<EOF /etc/nginx/conf.d/default.conf
+server {
+    listen       80;
+    listen  [::]:80;
+    server_name  localhost;
+    
+    location / {
+        root   /usr/share/nginx/html;
+        index  non-existent-to-prevent-caching.html;
+        try_files \$uri @index;
+    }
+
+    location @index {
+        root /usr/share/nginx/html;
+        add_header Cache-Control no-cache;
+        expires 0;
+        try_files /index.html =404;
+    }
+
+    error_page   500 502 503 504  /50x.html;
+    location = /50x.html {
+        root   /usr/share/nginx/html;
+    }
+}
+EOF
+COPY --from=builder /app/dist /usr/share/nginx/html