🧹 chore(app): add gh-pages deployment workflow

.github/workflows/gh-pages.yml

@@ -0,0 +1,25 @@
+name: Build and Deploy
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+
+jobs:
+  build-and-deploy:
+    concurrency: ci-${{ github.ref }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@v4
+
+      - name: Deploy 🚀
+        uses: JamesIves/github-pages-deploy-action@v4
+        with:
+          BRANCH: gh-pages
+          FOLDER: .
+          CLEAN: true