Remove center widget

lib/screens/kanji_search.dart

@@ -30,8 +30,7 @@ class KanjiView extends StatelessWidget {
 class KanjiViewBar extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    return Center(
-      child: Container(
+    return Container(
       child: Row(
         children: [
           IconButton(
@@ -40,7 +39,7 @@ class KanjiViewBar extends StatelessWidget {
                 .add(ReturnToInitialState()),
           ),
           Expanded(
-              child: Padding(
+            child: Container(
               padding: EdgeInsets.symmetric(vertical: 10.0),
               child: TextField(
                 onSubmitted: (text) =>
@@ -66,7 +65,6 @@ class KanjiViewBar extends StatelessWidget {
           ),
         ],
       ),
-      ),
     );
   }
 }