fixes

Author: animator

lib/widgets/codegen_previewer.dart

@@ -135,7 +135,7 @@ class ViewCodePane extends StatelessWidget {
           child: Column(
             children: [
               SizedBox(
-                height: constraints.maxWidth > 340 ? kHeaderHeight : kTabHeight,
+                height: kHeaderHeight,
                 child: Row(
                   children: [
                     Expanded(

lib/widgets/dropdowns.dart

@@ -182,6 +182,8 @@ class DropdownButtonCodegenLanguage extends StatelessWidget {
             child: Text(
               value.label,
               style: kTextStyleButton,
+              overflow: TextOverflow.ellipsis,
+              maxLines: 1,
             ),
           ),
         );