Fix Breadcrumb NavXT breadcrumb rendering

[piit79]

This fixes Breadcrumb NavXT breadcrumb rendering which was removed by in ee748ab (by mistake I assume).

I tested the change (in prod 😉) on my WordPress/WooCommerce installation.

Summary

This change re-adds the code that calls the bcn_display() Breadcrumb NavXT function to display the breadcrumbs.

Will affect visual aspect of the product

YES (I guess? It adds breadcrumbs that have been missing)

Screenshots

Test instructions

• Install WordPress with Neve
• Install Breadcrumb NavXT and enable breadcrumbs
• Breadcrumbs will not be rendered
• Update the Neve code with this PR
• Breadcrumbs will now be rendered correctly

Check before Pull Request is ready:

• I have written a test and included it in this PR (was instructed by @selul to submit the PR even though I lack the time to add tests)
• I have run all tests and they pass (again, didn't have time to set up the dev environment)
• The code passes when running the PHP CodeSniffer
• Code meets WordPress Coding Standards for PHP, HTML, CSS and JS
• Security and Sanitization requirements have been followed
• I have assigned a reviewer or two to review this PR (if you're not sure who to assign, we can do this step for you)

Closes #4267.

[selul]

@piit79 Thank you for your contribution.

[pirate-bot]

🎉 This PR is included in version 3.8.11 🎉

The release is available on GitHub release

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