chore: #fe lint

frontend/src/css/keyboard.scss

@@ -39,7 +39,8 @@ $key-width: 8vw; // 100/12 ~ 8.3
     }
     &:nth-child(3) {
       grid-template-columns: 2.333 * $key-width repeat(8, $key-width) 1fr;
-      & > :nth-child(1), & > :nth-child(2) {
+      & > :nth-child(1),
+      & > :nth-child(2) {
         display: none;
       }
     }