Document webpack change: feat: export default handler creator for Progress plugin

[webpack-bot]

A pull request by @alexander-akait was merged and maintainers requested a documentation change.

See pull request: webpack/webpack#17312

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Here:

• export createDefaultHandler, we need this for fix: multi compiler progress output webpack-cli#3683
• strict types

Also createDefaultHandler can be used for more intresting things - for example you can customize it using emoji or provide more details

Summary

🤖 Generated by Copilot at 6550cb5

This pull request enhances the ProgressPlugin class by adding type definitions, JSDoc comments and a static createDefaultHandler function. These changes improve the code quality, documentation and usability of the plugin.

Details

🤖 Generated by Copilot at 6550cb5

• Add type definitions and JSDoc comments for various parameters, functions and variables in lib/ProgressPlugin.js to improve type checking, readability and documentation (link, link, link, link, link, link, link, link, link, link, link, link)
• Add type assertions for the name variable in the hookTap function and the cacheGetPromise variable in the apply function to improve type checking and accuracy (link, link)
• Export the createDefaultHandler function as a static property of the ProgressPlugin class to make it available for external use and improve usability and consistency (link)