ci: 👷 Web Example Deployment (#206)

- Added web-example-release.yaml to build web app and deploy it to github pages.

.github/workflows/web-example-release.yaml

@@ -0,0 +1,50 @@
+name: web-example-release
+on:
+  push:
+    branches:
+      - main
+    # Allows you to run this workflow manually from the Actions tab
+    workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Checkout input branch from github
+        uses: actions/checkout@v4.1.1
+      - name: Flutter action
+        uses: subosito/flutter-action@v2.13.0
+        with:
+          flutter-version: '3.16.5'
+          cache: true
+          cache-key: 'flutter-macos-stable-3.16.5-apple'
+          cache-path: '${{ runner.tool_cache }}/flutter/macos-stable-3.16.5-apple'
+          pub-cache-key: 'flutter-pub-macos-stable-3.16.5-apple'
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+      - name: Project Clean Up
+        run: flutter clean && flutter pub get
+      - name: Build Web App
+        run: cd example && flutter build web
+      - name: Upload Web Artifact
+        uses: actions/upload-pages-artifact@v3.0.1
+        with:
+          path: 'example/build/web'
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4.0.5