fix: Comment component fixes

example/lib/pages/components/comment.dart

@@ -23,9 +23,13 @@ class _CommentDemoState extends State<CommentDemo> {
             author: 'John Doe',
             downloadCallback: () {},
             comment: 'This is a comment',
-            onReply: () {},
+            onReply: () {
+              print('reply');
+            },
             replySemanticLabel: 'Reply to comment',
-            onDelete: () {},
+            onDelete: () {
+              print('delete');
+            },
             deleteSemanticLabel: 'Delete',
             timeStamp: '09:30 AM',
             attachment: ZdsChatAttachment(

lib/src/components/molecules/comment.dart

@@ -112,7 +112,7 @@ class ZdsComment extends StatelessWidget {
                     ZdsSlidableAction(
                       icon: ZetaIcons.delete,
                       semanticLabel: deleteSemanticLabel,
-                      onPressed: (_) {},
+                      onPressed: (_) => onDelete!(),
                       backgroundColor: colors.surfaceNegativeSubtle,
                       foregroundColor: colors.error,
                     ),

lib/src/components/organisms/chat/message_input.dart

@@ -29,7 +29,7 @@ class ZdsMessageInput extends StatefulWidget {
     this.allowVoiceNotes = false,
     super.key,
   }) : assert(
-          allowVoiceNotes && voiceNoteFileName != null,
+          (allowVoiceNotes && voiceNoteFileName != null) || !allowVoiceNotes,
           'A value for voiceNoteFileName must be provided if allowVoiceNotes is enabled',
         );