chore: add firebase exampleSite deploy

.github/workflows/firebase-hosting-pull-request.yml

@@ -0,0 +1,33 @@
+# This file was auto-generated by the Firebase CLI
+# https://github.com/firebase/firebase-tools
+
+name: Deploy to Firebase Hosting on PR
+"on": pull_request
+jobs:
+  build_and_preview:
+    if: "${{ github.event.pull_request.head.repo.full_name == github.repository }}"
+    runs-on: ubuntu-latest
+    env:
+      HUGO_CACHEDIR: /tmp/hugo_cache
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true # Fetch Hugo themes (true OR recursive)
+          fetch-depth: 0
+
+      - name: Hugo setup
+        uses: peaceiris/actions-hugo@v3
+        with:
+          # The Hugo version to download (if necessary) and use. Example: 0.58.2
+          hugo-version: "0.129.0" # optional, default is latestdddd
+          # Download (if necessary) and use Hugo extended version. Example: true
+          extended: true # optional, default is false
+
+      - name: Build
+        run: hugo --config exampleSite/config.toml --minify
+
+      - uses: FirebaseExtended/action-hosting-deploy@v0
+        with:
+          repoToken: "${{ secrets.GITHUB_TOKEN }}"
+          firebaseServiceAccount: "${{ secrets.FIREBASE_SERVICE_ACCOUNT }}"
+          projectId: nebrowser-com