fix: text style correction

packages/stream_chat_flutter/lib/src/gradient_avatar.dart

@@ -27,9 +27,6 @@ class _GradientAvatarState extends State<GradientAvatar> {
   @override
   Widget build(BuildContext context) => Center(
         child: RepaintBoundary(
-          child: SizedBox(
-            width: 100,
-            height: 100,
           child: Stack(
             alignment: Alignment.center,
             children: [
@@ -37,17 +34,17 @@ class _GradientAvatarState extends State<GradientAvatar> {
                 painter: DemoPainter(widget.userId),
                 child: const SizedBox.expand(),
               ),
-                FittedBox(
+              Padding(
-                  child: Padding(
+                padding: const EdgeInsets.all(8),
-                    padding: const EdgeInsets.all(32),
                 child: Opacity(
-                      opacity: 0.8,
+                  opacity: 0.7,
+                  child: FittedBox(
                     child: Text(
                       getShortenedName(widget.name),
                       style: const TextStyle(
                         color: Colors.white,
-                          fontSize: 112,
+                        fontSize: 120,
-                          fontWeight: FontWeight.bold,
+                        fontWeight: FontWeight.w500,
                       ),
                     ),
                   ),
@@ -56,7 +53,6 @@ class _GradientAvatarState extends State<GradientAvatar> {
             ],
           ),
         ),
-        ),
       );
 
   String getShortenedName(String name) {