fix messageinput

packages/stream_chat_flutter/lib/src/message_input.dart

@@ -463,7 +463,9 @@ class MessageInputState extends State<MessageInput> {
     );
   }
 
-  Widget _buildExpandActionsButton() => Padding(
+  Widget _buildExpandActionsButton() {
+    final channel = StreamChannel.of(context).channel;
+    return Padding(
       padding: const EdgeInsets.symmetric(horizontal: 8),
       child: AnimatedCrossFade(
         crossFadeState: _actionsShrunk
@@ -500,12 +502,8 @@ class MessageInputState extends State<MessageInput> {
                     if (!widget.disableAttachments) _buildAttachmentButton(),
                     if (widget.showCommandsButton &&
                         widget.editMessage == null &&
-                          StreamChannel.of(context)
-                                  .channel
-                                  .config
-                                  ?.commands
-                                  .isNotEmpty ==
-                              true)
+                        channel.state != null &&
+                        channel.config?.commands.isNotEmpty == true)
                       _buildCommandButton(),
                     ...widget.actions ?? [],
                   ].insertBetween(const SizedBox(width: 8)),
@@ -515,6 +513,7 @@ class MessageInputState extends State<MessageInput> {
         alignment: Alignment.center,
       ),
     );
+  }
 
   Expanded _buildTextInput(BuildContext context) {
     final theme = StreamChatTheme.of(context);