revert: Revert "fix: Remove background color from borderless table header (#3… (#3194)

Author: cansuaa

pages/table/embedded-in-alert.page.tsx

@@ -127,11 +127,6 @@
     background-color: awsui.$color-background-layout-main;
   }
 
-  // "embedded" variant is passed to container only from table variants "borderless" and "embedded"
-  &.header-variant-embedded {
-    background-color: transparent;
-  }
-
   &.header-with-media {
     background: none;
     &:not(:empty) {

src/container/styles.scss

@@ -75,9 +75,6 @@ $cell-horizontal-padding: awsui.$space-scaled-l;
   &-variant-full-page.header-cell-hidden {
     border-block-end-color: transparent;
   }
-  &-variant-borderless {
-    background: none;
-  }
   &:last-child,
   &.header-cell-sortable {
     padding-inline-end: awsui.$space-xs;