fix(customizer): append plan to woocomerce up sell labels

[Soare-Robert-Daniel]

Summary

The Customizer upsell for the WooCommerce booster now includes the plan names to eliminate the confusion for users who purchased personal plan and expected all the features.

Will affect visual aspect of the product

YES

Screenshots

Test instructions

• Install WooCommerce
• Using Neve Free, in Customizer on the WooCommerce tab, check if the upsell labels of the Neve PRO plugin include the plan names

Check before Pull Request is ready:

• I have written a test and included it in this PR
• I have run all tests and they pass
• 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 https://github.com/Codeinwp/neve-pro-addon/issues/2732

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🎉 This PR is included in version 3.8.2 🎉

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