fix: textfield height issues solved

lib/src/message_input.dart

@@ -282,8 +282,6 @@ class MessageInputState extends State<MessageInput> {
   Expanded _buildTextInput(BuildContext context) {
     return Expanded(
       child: Center(
-        child: LimitedBox(
-          maxHeight: widget.maxHeight,
         child: Container(
           clipBehavior: Clip.antiAlias,
           decoration: BoxDecoration(
@@ -296,12 +294,13 @@ class MessageInputState extends State<MessageInput> {
             mainAxisSize: MainAxisSize.min,
             children: [
               _buildAttachments(),
-                TextField(
+              LimitedBox(
+                maxHeight: widget.maxHeight,
+                child: TextField(
                   key: Key('messageInputText'),
                   enabled: _inputEnabled,
                   minLines: null,
                   maxLines: null,
-                  expands: true,
                   onSubmitted: (_) {
                     sendMessage();
                   },
@@ -412,11 +411,11 @@ class MessageInputState extends State<MessageInput> {
                   ),
                   textCapitalization: TextCapitalization.sentences,
                 ),
+              )
             ],
           ),
         ),
       ),
-      ),
     );
   }
 
@@ -514,11 +513,13 @@ class MessageInputState extends State<MessageInput> {
                   ...commands
                       .map(
                         (c) => ListTile(
-                          leading: c.name == 'giphy' ? CircleAvatar(
+                          leading: c.name == 'giphy'
+                              ? CircleAvatar(
                                   backgroundColor: Colors.black,
                                   child: Image.asset('images/giphy_icon.png'),
                                   maxRadius: 12.0,
-                          ) : null,
+                                )
+                              : null,
                           title: Text.rich(
                             TextSpan(
                               text: '${c.name.capitalize()}',