v6.2.0-alpha.33

Features

• Addon-docs: Support story.mdx, stories.mdx (#13996)

Bug Fixes

• Webpack5: Remove outdated html-webpack-plugin types (#13986)

Dependency Upgrades

• Move to a fork of react-sizeme with updated React peer dependency (#13733)
• Webpack4: Upgrade html-webpack-plugin and remove external types (#13993)