Fix issues

Author: Pante

docs_snippets/lib/usages/widgets/button.dart

@@ -43,7 +43,9 @@ final button = FButton(
 
 final icon = FButton.icon(
   // {@category "Variant"}
-  variant: .outline,
+  variant: null,
+  // {@endcategory}
+  // {@category "Size"}
   size: null,
   // {@endcategory}
   // {@category "Core"}
@@ -71,6 +73,8 @@ final icon = FButton.icon(
 final raw = FButton.raw(
   // {@category "Variant"}
   variant: null,
+  // {@endcategory}
+  // {@category "Size"}
   size: null,
   // {@endcategory}
   // {@category "Core"}

forui/lib/src/widgets/button/button.dart

@@ -67,7 +67,7 @@ class FButton extends StatelessWidget {
   /// ```dart
   /// FButton(
   ///   variant: .destructive,
-  ///   size: .small,
+  ///   size: .sm,
   ///   style: .delta(contentStyle: .delta(padding: .all(20))),
   ///   onPress: () {},
   ///   child: Text('Small destructive button with extra padding'),