feat: wip message input

lib/src/message_input.dart

@@ -627,6 +627,7 @@ class MessageInputState extends State<MessageInput> {
         icon: Icon(
           StreamIcons.lightning,
         ),
+        iconSize: 14.0,
       ),
     );
   }
@@ -638,6 +639,7 @@ class MessageInputState extends State<MessageInput> {
           showAttachmentModal();
         },
         icon: Icon(StreamIcons.attach),
+        iconSize: 14.0,
       ),
     );
   }
@@ -855,16 +857,14 @@ class MessageInputState extends State<MessageInput> {
   }
 
   Widget _buildIdleSendButton(BuildContext context) {
-    return SizedBox(
+    return IconTheme(
-      height: 24.0,
-      width: 16.0,
-      child: IconTheme(
       data:
           StreamChatTheme.of(context).channelTheme.messageInputButtonIconTheme,
       child: Padding(
         padding: const EdgeInsets.all(8.0),
         child: Center(
           child: IconButton(
+            iconSize: 14.0,
             key: Key('sendButtonIdle'),
             onPressed: () {
               sendMessage();
@@ -876,21 +876,18 @@ class MessageInputState extends State<MessageInput> {
           ),
         ),
       ),
-      ),
     );
   }
 
   Widget _buildSendButton(BuildContext context) {
-    return SizedBox(
+    return IconTheme(
-      height: 24.0,
-      width: 16.0,
-      child: IconTheme(
       data:
           StreamChatTheme.of(context).channelTheme.messageInputButtonIconTheme,
       child: Center(
         child: Padding(
           padding: const EdgeInsets.all(8.0),
           child: IconButton(
+            iconSize: 14.0,
             key: Key('sendButton'),
             onPressed: () {
               sendMessage();
@@ -902,7 +899,6 @@ class MessageInputState extends State<MessageInput> {
           ),
         ),
       ),
-      ),
     );
   }