perf: production mode + build in CI

- npm start instead of npm run dev
- CI does npm run build before restart
- Pages load in ~50ms instead of ~2s

.gitea/workflows/deploy.yml

@@ -13,10 +13,11 @@ jobs:
           cd /root/projects/team-board/web-client
           git pull origin main
 
-      - name: Install dependencies
+      - name: Install and build
         run: |
           cd /root/projects/team-board/web-client
           npm install --production=false
+          npm run build
 
       - name: Restart service
         run: |