Add workflow to publish NPM package

.github/workflows/continuous-integration.yml

@@ -48,3 +48,19 @@ jobs:
         with:
           name: build
           path: dist/netzgrafik-frontend/
+
+  publish:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Download build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: build
+          path: .
+      - uses: actions/setup-node@v4
+        with:
+          registry-url: 'https://registry.npmjs.org'
+      - run: npm publish --provenance --access public --tag "0.0.0+$GITHUB_SHA"
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}