fix: i18n key for delete image functionality

[JohnsonMao]

While adding support for multiple languages, I noticed that the translation for "Delete image" was not working. Upon investigation, I found that the key for "Delete image" was missing under imageEditor.

Currently, to apply the correct translation, we need to use image.delete:

{
    "image": {
        "delete": "Delete image"
    },
    "imageEditor": {
        "editImage": "Edit image"
    }
}

Expected Update Move the "Delete image" key under imageEditor for consistency:

{
    "imageEditor": {
        "deleteImage": "Delete image",
        "editImage": "Edit image"
    }
}

As a non-native English speaker, I welcome any suggestions for improvement.

[petyosi]

I will merge that soon, thank you.

[github-actions[bot]]

:tada: This PR is included in version 3.19.3 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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