This issue is automatically created based on existing pull request: #39941: Clarified Attribute Option already exists response

Description (*)

Replaced the awkward phrase "Get new file name if the same is already exists" with a clearer and grammatically correct version: "Get a new file name if one already exists." This improves readability and user understanding.
Same for the attribute option response.

Manual testing scenarios (*)

1. pushing an already existing attribute option to the attribute option api endpoint.

Questions or comments

First time PR to Magento. Please let me know if i need to do something else.

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)