fix: in-app-menu bg color edge case

when item weren't initially rendered because the window was too small, but were then accessed via the arrow keys - backgrounds was missing

plugins/in-app-menu/style.css

@@ -71,3 +71,7 @@ yt-page-navigation-progress,
 	-moz-border-radius: 100px;
 	-webkit-border-radius: 100px;
 }
+
+.cet-menubar-menu-container .cet-action-item {
+	background-color: inherit
+}