feat: refactor ci

- Docker images support amd64 and arm64 architectures
- The web interface is built using github actions
- Use Alpine as the base image to compress the image size

.github/workflows/go.yml

@@ -9,7 +9,14 @@ jobs:
   build_and_deploy_docker:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
+
+      - name: Set Up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set Up Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Login to image repository
         uses: docker/login-action@v2
         with:
@@ -17,9 +24,26 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GHCR_TOKEN }}
 
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          flutter-version: 3
+
+      - name: Build Web
+        run: |
+          cd ui
+          flutter pub get
+          flutter build web
+
       - name: Build and push
         uses: docker/build-push-action@v3
         with:
+          context: .
+          file: Dockerfile
+          platforms: |
+            linux/amd64
+            linux/arm64
           push: true
           tags: ghcr.io/simon-ding/polaris:latest