[Issue] Fixed the welcome message contains single quote character

[m2-assistant]

This issue is automatically created based on existing pull request: #34061: Fixed the welcome message contains single quote character

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Description (*)

This PR is fixed for the issue, that if we put the single quote character to the header welcome message config, it will lead the frontend to have a bunch of console errors:

Uncaught SyntaxError: Unable to process binding "ifnot: function(){return customer().fullname }"
Message: Unable to parse bindings.

Manual testing scenarios (*)

1. From Admin, navigate to Content -> Design -> Configuration
2. Select a theme and Edit
3. In the edit page, expand the Header setting, put the Welcome Text, like "Welcome Khoi's store!"
4. Clear cache, then go to frontend, you'll see a JS error, and some JS functions not working because of this issue.

Questions or comments

Maybe we need to bind the message as a text, instead of HTML binding, like:

data-bind="text: 'escapeHtmlAttr($welcomeMessage) ?>'"

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• README.md files for modified modules are updated and included in the pull request if any README.md predefined sections require an update
• All automated tests passed successfully (all builds are green)

[github-jira-sync-bot]

✅ Jira issue https://jira.corp.magento.com/browse/AC-3121 is successfully created for this GitHub issue.

[m2-assistant]

✅ Confirmed by @engcom-Alfa. Thank you for verifying the issue.
Issue Available: @engcom-Alfa, You will be automatically unassigned. Contributors/Maintainers can claim this issue to continue. To reclaim and continue work, reassign the ticket to yourself.