Popover: add box-sizing reset style (#58871)

* Popover: add `box-sizing:reset`

* Update changelog

* Fix typo in CHANGELOG

Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: andrewhayward <andrewhayward@git.wordpress.org>
Co-authored-by: richtabor <richtabor@git.wordpress.org>
Co-authored-by: MaggieCabrera <onemaggie@git.wordpress.org>
Co-authored-by: annezazu <annezazu@git.wordpress.org>

packages/components/CHANGELOG.md

@@ -27,6 +27,7 @@
 -   `PaletteEdit`: Fix palette item accessibility in details view ([#58214](https://github.com/WordPress/gutenberg/pull/58214)).
 -   `Snackbar`: Fix the auto-dismissal timers ([#58604](https://github.com/WordPress/gutenberg/pull/58604)).
 -   `Tabs`: Fix infinite loop in `useEffect` ([#58861](https://github.com/WordPress/gutenberg/pull/58861)).
+-   `Popover`: Add `box-sizing` reset style ([#58871](https://github.com/WordPress/gutenberg/pull/58871)).
 
 ### Experimental
 

packages/components/src/popover/style.scss

@@ -6,6 +6,7 @@ $shadow-popover-border-top-only: 0 #{-$border-width} 0 0 $gray-400;
 $shadow-popover-border-top-only-alternate: 0 #{-$border-width} 0 $gray-900;
 
 .components-popover {
+	@include reset;
 	z-index: z-index(".components-popover");
 	will-change: transform;
 

packages/customize-widgets/src/style.scss

@@ -13,7 +13,6 @@
 
 // Include reset CSS for the customizer.
 .customize-control-sidebar_block_editor,
-.customize-widgets-layout__inspector,
-.customize-widgets-popover {
+.customize-widgets-layout__inspector {
 	@include reset;
 }

packages/edit-post/src/style.scss

@@ -47,7 +47,6 @@ body.js.block-editor-page {
 .edit-post-text-editor,
 .edit-post-sidebar,
 .editor-post-publish-panel,
-.components-popover,
 .components-modal__frame {
 	@include reset;
 }