[Docs] Getting started: Introduction

[jbroma]

Documentation is

• Missing
• Outdated
• Confusing
• Not sure?

Explain in Detail

Introduction is copied over from v4, needs to be rewritten from scratch

Your Suggestion for Changes

• what it is: toolkit, rspack + webpack, has dev server
• why & when: microfrontends with MF, customisability, performance (in that order)
• short comparison with Metro
• drop design goals for now
• drop Haul, drop nativepack

[github-actions]

This issue has been marked as stale because it has been inactive for 30 days. Please update this issue or it will be automatically closed in 14 days.