Change the style on the create wallet page

Author: Gilyoung

src/components/App/App.scss

@@ -7,7 +7,7 @@
     height: calc(100vh - #{$header-height});
     overflow: scroll;
     padding: 38px;
-    background: $white;
+    background: $bg-white;
 
     @include respond-below(sm) {
       & {