refactoring

example/lib/main.dart

@@ -67,7 +67,6 @@ void main() async {
   final client = Client(
     's2dxdhpxd94g',
     logLevel: Level.INFO,
-    persistenceEnabled: false,
     showLocalNotification: Platform.isAndroid ? showLocalNotification : null,
   );
 

lib/src/message_input.dart

@@ -547,6 +547,9 @@ class MessageInputState extends State<MessageInput> {
   }
 
   Widget _buildAttachment(_SendingAttachment attachment) {
+    print('attachment.attachment.toJson(): ${attachment.attachment.toJson()}');
+    print(
+        'widget.attachmentThumbnailBuilder: ${widget.attachmentThumbnailBuilder}');
     if (widget.attachmentThumbnailBuilder
             ?.containsKey(attachment.attachment.type) ==
         true) {
@@ -944,8 +947,7 @@ class MessageInputState extends State<MessageInput> {
     textEditingController =
         widget.textEditingController ?? TextEditingController();
     if (widget.editMessage != null || widget.initialMessage != null) {
-      _parseExistingMessage(
-          widget.editMessage ?? widget.initialMessage != null);
+      _parseExistingMessage(widget.editMessage ?? widget.initialMessage);
     }
   }
 
@@ -956,6 +958,7 @@ class MessageInputState extends State<MessageInput> {
     _messageIsPresent = true;
 
     message.attachments?.forEach((attachment) {
+      print('attachment: ${attachment.toJson()}');
       _attachments.add(_SendingAttachment(
         attachment: attachment,
         uploaded: true,

lib/src/message_widget.dart

@@ -712,10 +712,6 @@ class _MessageWidgetState extends State<MessageWidget>
                           child: Icon(
                             Icons.close,
                             size: 15,
-                            color:
-                                Theme.of(context).brightness == Brightness.dark
-                                    ? Colors.white
-                                    : Colors.black,
                           ),
                         ),
                       ),