This issue is automatically created based on existing pull request: #40517: Fix the product gallery tab when an image attribute label contains a single quote

Description (*)

The data-types attribute in the admin product gallery is delimited using single quotes with @noEscape. When an image attribute label contains a single quote (e.g. Image d'exemple), the attribute is cut off and the gallery breaks.

Fix: use escapeHtmlAttr() with double quotes, consistent with data-images on the line above.

Introduced in 17f0f4d (MAGETWO-99285), where escapeHtml() was replaced with @noEscape instead of escapeHtmlAttr().

Related Pull Requests

Fixed Issues (if relevant)

1. Fixes Images and Videos tab not working #16807

Manual testing scenarios (*)

1. Create an image attribute with a label containing a single quote (e.g. Image d'exemple)
2. Assign it to some attribute set
3. Edit any corresponding product in the admin and open the gallery tab: the gallery is broken

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)