Add SocialLinks block to the Navigation block

[draganescu]

Description

Part of #24875

We should add the ability to place a SocialLinks block to a navigation block. Currently we can add a search block.

[talldan]

A first step for anyone interested in pick this up would be to update the allowedBlocks for the navigation block:

gutenberg/packages/block-library/src/navigation/edit.js

Lines 182 to 185 in bd8bfea

	allowedBlocks={ [
	'core/navigation-link',
	'core/search',
	] }

There may also be styling issues when social links is rendered in Navigation, but that can always be addressed in a separate PR.

[jordesign]

I'm happy to jump in and get my feet wet with this one.

[talldan]

That'd be great, thanks @jordesign!

[jordesign]

Allowing the nav block works well enough 👍

I'm wondering if we need to worry/think about the fact the alignment controls for the Social Links block don't make much sense in the context of a Nav Block?

At the moment you can set an alignment on the Social Icons which breaks the layout in the editor.

This doesn't seem to impact things on the front-end (testing with TwentyTwenty) but it seems it needs to be a nicer experience in the editor?

[shaunandrews]

Is it possible to hide the alignment options when the Social Links block is place within the Navigation block?

[jordesign]

@shaunandrews That's essentially what I was thinking too. I'm not sure of the answer though 😂.

[draganescu]

@jordesign I assigned this to you. Be sure to mention the issue when you open a PR with your work above thank you 🙏

[talldan]

@jordesign That's an interesting one. I don't think there's a good way to achieve this at the moment.

The problem you've outlined is a bit higher level than this issue, and probably needs some discussion and potentially a new API for blocks. I think it'd be good to create your PR as is, and move the discussion on this on problem to a separate issue.

[jordesign]

PR is added ^

Will open a new issue regarding controlling whether alignment tools show when the block is inserted.

[draganescu]

Closed by #25357