129279 put custom-card in override

packages/core/scss/bootstrap/_override.scss

@@ -81,9 +81,7 @@
 // .card-header:first-child {
 // }
 
-// TODO: Use .custom-card instead of .well
-// https://redmine.weseek.co.jp/issues/128307
-// .card.well {
+// .card.custom-card {
 //   min-height: 20px;
 //   padding: $card-spacer-y $card-spacer-x;
 // }