Feature/Added prop for passing function when close button is clicked

[sbsangu]

Fixes

Fixes #1117

Summary

Added an onButtonClose prop to the Toast component to allow users to define a callback function that gets called when the close button of a toast is clicked. This enhancement improves the flexibility and usability of the toast component by allowing custom behavior to be executed when the close button is pressed.

Changes

• Updated the Toast component to accept and handle a new onButtonClose prop.
• Updated the ToastContainer component to pass the onButtonClose prop to each Toast component.
• Updated TypeScript definitions to include the new onButtonClose prop.

Checklist

• Forked the repository and created a new branch from master.
• Ran yarn in the repository root.
• Added tests to cover the new functionality.
• Ensured the test suite passes (yarn test).
• Ran yarn start to test changes in the playground.
• Updated the readme if needed.
• Updated the TypeScript definitions if needed.
• Formatted the code with prettier (yarn prettier-all).
• Ensured the code lints (yarn lint:fix).

Additional Information

This feature allows users to pass a callback function that will be called when the toast's close button is clicked, enabling more custom and dynamic behaviors when a toast is dismissed.

[sbsangu]

Does it resolve issue #1117 ?