Resize cover block only in normal mode (WordPress#65731)

* only show resize controls in normal rendering mode

* get block editing mode from hook not prop - misread code elsewhere

Co-authored-by: draganescu <andraganescu@git.wordpress.org>
Co-authored-by: getdave <get_dave@git.wordpress.org>
Co-authored-by: MaggieCabrera <onemaggie@git.wordpress.org>
Co-authored-by: scruffian <scruffian@git.wordpress.org>
Co-authored-by: ellatrix <ellatrix@git.wordpress.org>

packages/block-library/src/cover/edit/index.js

@@ -18,6 +18,7 @@ import {
 	useInnerBlocksProps,
 	__experimentalUseGradient,
 	store as blockEditorStore,
+	useBlockEditingMode,
 } from '@wordpress/block-editor';
 import { __ } from '@wordpress/i18n';
 import { useSelect, useDispatch } from '@wordpress/data';
@@ -278,6 +279,9 @@ function CoverEdit( {
 	const isImageBackground = IMAGE_BACKGROUND_TYPE === backgroundType;
 	const isVideoBackground = VIDEO_BACKGROUND_TYPE === backgroundType;
 
+	const blockEditingMode = useBlockEditingMode();
+	const hasNonContentControls = blockEditingMode === 'default';
+
 	const [ resizeListener, { height, width } ] = useResizeObserver();
 	const resizableBoxDimensions = useMemo( () => {
 		return {
@@ -447,7 +451,7 @@ function CoverEdit( {
 			<>
 				{ blockControls }
 				{ inspectorControls }
-				{ isSelected && (
+				{ hasNonContentControls && isSelected && (
 					<ResizableCoverPopover { ...resizableCoverProps } />
 				) }
 				<TagName
@@ -576,7 +580,7 @@ function CoverEdit( {
 				/>
 				<div { ...innerBlocksProps } />
 			</TagName>
-			{ isSelected && (
+			{ hasNonContentControls && isSelected && (
 				<ResizableCoverPopover { ...resizableCoverProps } />
 			) }
 		</>