refactor: update Black Friday labels

[Soare-Robert-Daniel]

Summary

Change the labels for Black Friday promotion. Based on https://github.com/Codeinwp/themeisle/issues/1854

Screenshots

Test instructions

• Install this plugin: https://github.com/Soare-Robert-Daniel/test-black-friday
• Use this SDK version: https://github.com/Codeinwp/themeisle-sdk-main/pull/309
• Test:
  • If the notice appears during the Black Friday period.
  • If the labels change based on the license status (described in the spreadsheet)
  • If the notice can be dismissed.
  • If the notice appears only if the plugin is 3 days old. Warning: You will see the notice if you have another product that is older than 3 days; in this case, better to disable them.

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/themeisle/issues/1854

[pirate-bot]

Plugin build for 128b8a7 is ready 🛎️!

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