Add GHCR support

.github/workflows/main.yml

@@ -82,16 +82,25 @@ jobs:
 
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v1
-    
+
     - name: Login to DockerHub
-      uses: docker/login-action@v1
+      uses: docker/login-action@v1 
       with:
         username: ${{ secrets.DOCKERHUB_USERNAME }}
         password: ${{ secrets.DOCKERHUB_TOKEN }}
 
+    - name: Login to GitHub Container Registry
+      uses: docker/login-action@v1 
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
     - name: Build and push
       uses: docker/build-push-action@v2
       with:
         push: true
         platforms: linux/amd64,linux/arm64/v8,linux/arm/v7
-        tags: phntxx/dashboard:latest
+        tags: |
+          phntxx/dashboard:latest
+          ghcr.io/phntxx/dashboard:latest