MOBILE-3947 blocks: Check blocks are enabled on blocks delegates

src/core/classes/delegate-sorted.ts

@@ -31,9 +31,7 @@ export class CoreSortedDelegate<
     protected sortedHandlers: DisplayType[] = [];
 
     /**
-     * Constructor of the Delegate.
+     * @inheritdoc
-     *
-     * @param delegateName Delegate name used for logging purposes.
      */
     constructor(delegateName: string) {
         super(delegateName, true);

src/core/features/block/services/block-delegate.ts

@@ -109,6 +109,13 @@ export class CoreBlockDelegateService extends CoreDelegate<CoreBlockHandler> {
         this.blocksUpdateObservable = new Subject<void>();
     }
 
+    /**
+     * @inheritdoc
+     */
+    async isEnabled(): Promise<boolean> {
+        return !this.areBlocksDisabledInSite();
+    }
+
     /**
      * Check if blocks are disabled in a certain site.
      *