docs: add missing docs code comments to message blocked component

Author: szuperaz

projects/stream-chat-angular/src/lib/message-blocked/message-blocked.component.ts

@@ -11,6 +11,12 @@ import { StreamMessage } from '../types';
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class MessageBlockedComponent {
+  /**
+   * The message that has been blocked.
+   */
   @Input() message: StreamMessage | undefined;
+  /**
+   * Whether the message is the current user's own message.
+   */
   @Input() isMyMessage = false;
 }