bug(popover): feature clouds cut off (#4615)

* bug(popover): feature clouds cut off

* bug(popover): release notes

Author: kflournoy-sf

RELEASENOTES.md

@@ -86,7 +86,7 @@
     - Footer top border changed to match default popover border color and width
 - Walkthrough variant
     - Removed header background image
-    - Changed footer background color to `$palette-blue-20`
+    - Footer background color is now explicitly set to transparent
 #### Added
 - Added light and dark Brand variants, including new selectors `.slds-popover_brand, .slds-popover_brand-dark, .slds-popover_brand-top, .slds-popover_brand-left, .slds-popover_brand-bottom, .slds-popover_brand-right`
 - Added new Prompt branded variants

ui/components/popovers/RELEASENOTES.md

@@ -24,7 +24,7 @@
     - Footer top border changed to match default popover border color and width
 - Walkthrough variant
     - Removed header background image
-    - Changed footer background color to `$palette-blue-20`
+    - Footer background color is now explicitly set to transparent
 
 ### Added
 

ui/components/popovers/walkthrough/_deprecate.scss

@@ -48,7 +48,7 @@
     }
 
     .slds-popover__footer {
-      background-color: inherit;
+      background-color: transparent;
       border: 0;
     }