SHS-5911: Add indicator of 3rd level shortcut menu

[mariannuar]

READY FOR REVIEW

Summary

Adds indicator of shortcut menu 3rd level

Need Review By (Date)

11/20

Urgency

'medium

Steps to Test

1. In any site, go to this path: /admin/config/user-interface/shortcut/manage/default/customize
2. Add a shortcut item as a third level item
3. Now verify that if there are 3rd-level items, they have an indicator that let the user knows there's a 3rd level menu item
4. You can check an existing 3rd-level link here: https://pr1681-drxb2zpp0vmpul1acmcab6mkcz95fral.tugboatqa.com/ (Shortcuts > Site Actions > Page not found Report > Third level)

PR Checklist

• PR Checklist
• Humsci Basic PR Checklist

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[cienvaras]

@mariannuar Looks great, but the indicator is only present on the FE theme. If I visit an admin page (e.g. /admin/content) the indicator is absent. You need to also add the styles in the admin theme.

[mariannuar]

@cienvaras Ready for review again. Visit https://pr1681-drxb2zpp0vmpul1acmcab6mkcz95fral.tugboatqa.com/ and check for Shortcuts > Site Actions > Page not found Report > Third level

[cienvaras]

@mariannuar Left a question for you.

[mariannuar]

@cienvaras Back to you. https://hs-colorful-drxb2zpp0vmpul1acmcab6mkcz95fral.tugboatqa.com/

[cienvaras]

@mariannuar LGTM! 🚀

@ahughes3 Ready for your review.

[ahughes3]

LGTM!

[mariannuar]

Hi @joegl can we please hold on the merge of this PR? My local environment is not working right now, and I would like to use the tugboat preview of this PR for today's demo. Thanks!

[joegl]

Hi @joegl can we please hold on the merge of this PR? My local environment is not working right now, and I would like to use the tugboat preview of this PR for today's demo. Thanks!

No problem @mariannuar ! Let me know once it's ready again and hope the demo goes great 👍

[mariannuar]

@joegl Thank you! It's ready again. 🙂