Widget Editor: Fix: close button is not working

[PARTHVATALIYA]

What?

Closes #65433

Why?

Bug fix.

How?

Adding onClose props to close button

Testing Instructions

• Activate the twenttwentyone theme
• Open appearnce > widgets
• Open block inserter
• Click on close button on the inserter menu and it should close
• Change the responsive view to tablet view
• Open block inserter
• There is no one extra close button for closing inserter menu

Screenshots or screencast

Themes.gutenberg.WordPress.webm

[github-actions]

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Co-authored-by: draganescu <[email protected]>
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[github-actions]

👋 Thanks for your first Pull Request and for helping build the future of Gutenberg and WordPress, @PARTHVATALIYA! In case you missed it, we'd love to have you join us in our Slack community.

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[draganescu]

I tested this and it works, let's 🚢 it!
Thanks @PARTHVATALIYA

[t-hamano]

Hi @PARTHVATALIYA,

Sorry for the delay in reviewing this PR. Could you resolve the conflicts so we can ship this PR?

We should also be able to remove this CSS:

gutenberg/packages/edit-widgets/src/components/layout/style.scss

Lines 10 to 15 in 9e3bdeb

	.edit-widgets-layout__inserter-panel-header {
	padding-top: $grid-unit-10;
	padding-right: $grid-unit-10;
	display: flex;
	justify-content: flex-end;
	}

[PARTHVATALIYA]

Hey @t-hamano, thank you for your response! 🙂

I have resolved all the conflicts and removed the unnecessary CSS.

[t-hamano]

LGTM! Thanks for the update 👍