Navigation: Page List fix missing padding. (#43358)

packages/block-library/src/navigation/style.scss

@@ -341,16 +341,17 @@ button.wp-block-navigation-item__content {
 // We use :where to keep specificity minimal, yet still scope it to only the navigation block.
 // That way if padding is set in theme.json, it still wins.
 // https://css-tricks.com/almanac/selectors/w/where/
+// Note: .wp-block-navigation-item targets both Page List and custom menu items. .wp-block-navigation-link targets only custom.
 
 // When the menu has a background, items have paddings, reduce margins to compensate.
 // Treat margins and paddings differently when the block has a background.
-:where(.wp-block-navigation.has-background .wp-block-navigation-link a:not(.wp-element-button)),
+:where(.wp-block-navigation.has-background .wp-block-navigation-item a:not(.wp-element-button)),
 :where(.wp-block-navigation.has-background .wp-block-navigation-submenu a:not(.wp-element-button)) {
 	padding: 0.5em 1em;
 }
 
 // Provide a default padding for submenus who should always have some, regardless of the top level menu items.
-:where(.wp-block-navigation .wp-block-navigation__submenu-container .wp-block-navigation-link a:not(.wp-element-button)),
+:where(.wp-block-navigation .wp-block-navigation__submenu-container .wp-block-navigation-item a:not(.wp-element-button)),
 :where(.wp-block-navigation .wp-block-navigation__submenu-container .wp-block-navigation-submenu a:not(.wp-element-button)) {
 	padding: 0.5em 1em;
 }