Update markup classnames

Marked as ready to kick off an initial round of tests to make sure I'm on the right track.

Current fail is due to not running prettier on the codebase before committing, I believe you can just do `yarn prettier` then commit and push.

Adding a comment here just to bump this issue back to the top of my dashboard.

The issue seemed to be for most test errors that we had .project instead of .pb-project which could not be found.

The last merge request works on my local, could It be a timeout issue with the functional PHP unit test, on drupal ci?

If you compare the DrupalCI test fails and the GitLab CI test fails, are they the same? (Might need to rebase to get DrupalCI to fail. If they're different, then it's just flakiness all around... :( )

They were not the same last time I checked.

bernardm28 → changed the visibility of the branch 3365435-update-markup-classnames to hidden.

bernardm28 → changed the visibility of the branch 3365435-update-markup-classnames-rebased-test to hidden.

I reviewed the module and noticed no styling regressions as a result of all the class name changes.

I spent some time looking at it today, I did not notice any visual regression.
Also, I added the FLDC2024 tag as I started working on this for Florida drupal camp contribution day.

Marking this fixed, because there IS a test failure, but it is failing on HEAD also--a result of us chasing HEAD on automatic_updates (package_manager).

And this is a big-bad, and getting it in means we can rebase and move forward on a number of smaller issues.

There was 1 failure:
    
    1)
    Drupal\Tests\project_browser\FunctionalJavascript\ProjectBrowserInstallerUiTest::testInstallModuleAlreadyInFilesystem
    Failed asserting that a NULL is not empty.
    
    /builds/project/project_browser/vendor/phpunit/phpunit/src/Framework/Constraint/Constraint.php:122
    /builds/project/project_browser/vendor/phpunit/phpunit/src/Framework/Constraint/Constraint.php:56
    /builds/project/project_browser/tests/src/FunctionalJavascript/ProjectBrowserInstallerUiTest.php:106
    /builds/project/project_browser/vendor/phpunit/phpunit/src/Framework/TestResult.php:729
    
    FAILURES!
    Tests: 5, Assertions: 48, Failures: 1.
  

Automatically closed - issue fixed for 2 weeks with no activity.