Fix E2E tests

[renatho]

Proposed Changes

• Fix E2E tests. The selector to preview the course didn't exist. I tested it with WP 6.4, and I couldn't see it there either. I couldn't identify the origin of the issue, but fixing the selector fixed it.

Testing Instructions

Check that CI is passing.

Pre-Merge Checklist

• PR title and description contain sufficient detail and accurately describe the changes
• Acceptance criteria is met
• Decisions are publicly documented
• Adheres to coding standards (PHP, JavaScript, CSS, HTML)
• All strings are translatable (without concatenation, handles plurals)
• Follows our naming conventions (P6rkRX-4oA-p2)
• Hooks (p6rkRX-1uS-p2) and functions are documented
• New UIs are responsive and use a mobile-first approach
• New UIs match the designs
• Different user privileges (admin, teacher, subscriber) are tested as appropriate
• Legacy courses (course without blocks) are tested
• Code is tested on the minimum supported PHP and WordPress versions
• User interface changes have been tested on the latest versions of Chrome, Firefox and Safari
• "Needs Documentation" label is added if this change requires updates to documentation
• Known issues are created as new GitHub issues

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.76%. Comparing base (0761ee1) to head (01d7b5f).
Report is 1 commits behind head on trunk.

❗ Current head 01d7b5f differs from pull request most recent head 201e6e9. Consider uploading reports for the commit 201e6e9 to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##              trunk    #7578   +/-   ##
=========================================
  Coverage     51.76%   51.76%           
  Complexity    11321    11321           
=========================================
  Files           641      641           
  Lines         48181    48181           
  Branches        470      470           
=========================================
  Hits          24940    24940           
  Misses        22860    22860           
  Partials        381      381           

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[github-actions]

Test the previous changes of this PR with WordPress Playground.

[github-actions]

Test the previous changes of this PR with WordPress Playground.

[m1r0]

Thanks!