Install before deploy

.github/workflows/deploy-gh-pages.yml

@@ -24,6 +24,16 @@ jobs:
           path: ~/.npm
           key: node-v1-${{ hashFiles('**/package-lock.json') }}
 
+      - name: "[js-waku] install using npm ci"
+        uses: bahmutov/npm-install@v1
+
+      - name: "[js-waku] build"
+        run: npm run build
+
+      - name: install using npm i
+        run: npm install
+        working-directory: web-chat
+
       - name: Deploy web chat app on gh pages
         run: npm run deploy
         working-directory: web-chat