Fix "insert before/after" not showing for blocks in site editor (#62530)

Co-authored-by: kevin940726 <kevin940726@git.wordpress.org>
Co-authored-by: noisysocks <noisysocks@git.wordpress.org>
Co-authored-by: talldan <talldanwp@git.wordpress.org>
Co-authored-by: Mamaduka <mamaduka@git.wordpress.org>
Co-authored-by: richtabor <richtabor@git.wordpress.org>
* Fix insert before & after not showing for blocks in templates

* Use block editing mode

packages/block-editor/src/components/block-actions/index.js

@@ -31,12 +31,10 @@ export default function BlockActions( {
 				getDirectInsertBlock,
 				canMoveBlocks,
 				canRemoveBlocks,
-				getBlockEditingMode,
 			} = select( blockEditorStore );
 
 			const blocks = getBlocksByClientId( clientIds );
 			const rootClientId = getBlockRootClientId( clientIds[ 0 ] );
-			const rootBlockEditingMode = getBlockEditingMode( rootClientId );
 			const canInsertDefaultBlock = canInsertBlockType(
 				getDefaultBlockName(),
 				rootClientId
@@ -48,9 +46,7 @@ export default function BlockActions( {
 			return {
 				canMove: canMoveBlocks( clientIds, rootClientId ),
 				canRemove: canRemoveBlocks( clientIds, rootClientId ),
-				canInsertBlock:
-					( canInsertDefaultBlock || !! directInsertBlock ) &&
-					rootBlockEditingMode === 'default',
+				canInsertBlock: canInsertDefaultBlock || !! directInsertBlock,
 				canCopyStyles: blocks.every( ( block ) => {
 					return (
 						!! block &&

packages/block-editor/src/components/block-settings-menu/block-settings-dropdown.js

@@ -256,7 +256,7 @@ export function BlockSettingsDropdown( {
 										{ __( 'Duplicate' ) }
 									</MenuItem>
 								) }
-								{ canInsertBlock && (
+								{ canInsertBlock && ! isContentOnly && (
 									<>
 										<MenuItem
 											onClick={ pipe(