feat(build): bundle frontend with vite and matrix-js-sdk, fix HOST in server.js

Dockerfile

@@ -6,9 +6,9 @@ WORKDIR /app
 
 COPY package*.json ./
 
-RUN npm ci --omit=dev
+RUN npm ci
 
-COPY server.js tracing.js ./
+COPY server.js tracing.js vite.config.mjs ./
 COPY public/ ./public/
 
 # Inject build release into index.html if APP_RELEASE is specified
@@ -18,6 +18,8 @@ RUN if [ -n "${APP_RELEASE}" ]; then \
       sed -i "s/window.__APP_RELEASE__ || \"dev\"/\"${APP_RELEASE}\"/g" ./public/index.html; \
     fi
 
+RUN npm run build && npm prune --omit=dev
+
 ENV PORT=8080 \
     HOST=0.0.0.0