Described missed prompt widget options and added code samples of prompt widget initialization

[serhiyzhovnir]

Purpose of this pull request

This pull request (PR) describes missed options of the prompt widget and also it adds the code samples of the prompt widget initialization.

Affected DevDocs pages

• https://devdocs.magento.com/guides/v2.3/javascript-dev-guide/widgets/widget_prompt.html
• https://devdocs.magento.com/guides/v2.2/javascript-dev-guide/widgets/widget_prompt.html

Links to Magento source code

• https://github.com/magento/magento2/blob/2.3/app/code/Magento/Ui/view/base/web/templates/modal/modal-prompt-content.html
• https://github.com/magento/magento2/blob/2.2/app/code/Magento/Ui/view/base/web/templates/modal/modal-prompt-content.html
• https://github.com/magento/magento2/blob/2.2/app/code/Magento/Ui/view/base/web/js/modal/prompt.js
• https://github.com/magento/magento2/blob/2.3/app/code/Magento/Ui/view/base/web/js/modal/prompt.js
• https://github.com/magento/magento2/blob/2.2/app/code/Magento/Catalog/view/adminhtml/templates/catalog/product/attribute/set/main.phtml#L283
• https://github.com/magento/magento2/blob/2.3/app/code/Magento/Catalog/view/adminhtml/templates/catalog/product/attribute/set/main.phtml#L282

[devops-devdocs]

An admin must run tests on this PR before it can be merged.

[dobooth]

If you saw my comments in your other PRs, let's move images to common/images and optimize them before you commit. Thanks!

[serhiyzhovnir]

Hi @dobooth
We have created new PR with requested changes: #4782
Thank you!

[ghost]

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