[MAINTAIN-155] fixed issue with not working modal dialog on membership (/join) page on Carnation theme

[aleevas]

Original Issue, this PR is going to fix: MAINTAIN-155

This one should fix issue with a modal window on /join page that didn't closing

Steps for review

• go to /join page

• please not check anything on page and click Next

• verify that you can see the modal window with error message

• verify that you can close it by clicking to x button
  

• please verify that you can close this modal window on every steps on this form

• for additional check: go to /user/login

• please fill fields with dummy credentials and click "Login"
  

• verify that you can see the modal window with error message

• verify that you can close it

General checks

• All coding styles are fulfilled and there are no any issues reported by CodeSniffer. See Code of Conduct.
• Try to use Conventional commit messages accordingly to the standard https://www.conventionalcommits.org/en/v1.0.0/#specification
• Documentation has been updated according to PR changes.
• Steps for review have been provided according to PR changes.
  
• Make sure you've provided all necessary hook_update_N to support upgrade path.
• Make sure your git email is associated with account on drupal.org, otherwise you won't get commits there.
  
• If you would like to get credits on drupal.org, check documentation.

Thank you for your contribution!

[gundevel]

Can one of the admins verify this patch? Use "o+k to test" or ''t+est this please" for manual build execution.

[hamrant]

ok to test

[gundevel]

Build comment file:

Check Open Y Installation Wizard at http://install.openy.cibox.tools/build3414/install.php

---

Test PASSed.
Refer to this link for build results (access rights to CI server needed):
http://openy.cibox.tools:8080/job/PR_BUILDER_COMPOSER/3414/

[gundevel]

Open Y Upgrade Path site check installed at http://upgrade.openy.cibox.tools/build3414/

[hamrant]

Looks ok for me - http://upgrade.openy.cibox.tools/build3414/join

[AnastasiiaPys]

Tested on macOS(Chrome),Windows 10(Edge), Iphone 11, Ipad.

Works as expected.