ci: Add Prettier format check to workflow

Author: dunaj-dev

.github/workflows/docker-publish.yml

@@ -21,6 +21,23 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20' # Use a recent LTS version
+
+      - name: Install backend dependencies and check formatting
+        run: |
+          cd backend
+          npm ci
+          npm run format:check
+        
+      - name: Install frontend dependencies and check formatting
+        run: |
+          cd frontend
+          npm ci
+          npm run format:check
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
@@ -52,4 +69,4 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
-          cache-to: type=gha,mode=max
+          cache-to: type=gha,mode=max