Refactor Docker build workflow for better clarity

Author: Jorman

.github/workflows/build-emulerr-stalled.yml

@@ -12,32 +12,22 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Login to Docker Hub
-        uses: docker/login-action@v3
+      - uses: actions/checkout@v4
+      
+      - uses: docker/setup-buildx-action@v3
+      
+      - uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-      - name: Build and push Docker image
-        uses: docker/build-push-action@v5
+      
+      - uses: docker/build-push-action@v5
         with:
           context: ./eMulerrStalledChecker
           platforms: linux/amd64,linux/arm64
           push: true
           tags: |
-            jorman/emulerr-stalled-checker:latest
-            jorman/emulerr-stalled-checker:${{ github.sha }}
+            ${{ secrets.DOCKERHUB_USERNAME }}/emulerr-stalled-checker:latest
+            ${{ secrets.DOCKERHUB_USERNAME }}/emulerr-stalled-checker:${{ github.sha }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
-
-      - name: Image summary
-        run: |
-          echo "✅ Image built successfully!" >> $GITHUB_STEP_SUMMARY
-          echo "📦 **jorman/emulerr-stalled-checker:latest**" >> $GITHUB_STEP_SUMMARY
-          echo "🔖 Tag: \`${{ github.sha }}\`" >> $GITHUB_STEP_SUMMARY