Update Node setup and frontend install steps

Removes npm cache configuration from setup-node action and switches frontend dependency installation from 'npm ci' to 'npm i' in the GitHub Actions workflow.

Author: 239573049

.github/workflows/docker-image.yml

@@ -13,13 +13,11 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: '20'
-          cache: 'npm'
-          cache-dependency-path: 'web-site/package-lock.json'
 
       - name: Install frontend dependencies
         run: |
           cd web-site
-          npm ci
+          npm i
       
       - name: Build frontend
         run: |