Homepage revamp

### Have you read the Contributing Guidelines on issues?

- [X] I have read the [Contributing Guidelines on issues](https://github.com/facebook/docusaurus/blob/main/CONTRIBUTING.md#reporting-new-issues).

### Description

The homepage hasn't changed since I built it 2 years ago and I think it's time for a revamp. I'm not a designer so I'm taking inspiration from some of my favorite websites (https://turborepo.org, https://vercel.com, https://supabase.com) and imitating their structure. This issue serves as a discussion for the content structure. With a content structure I could do up the design for the new homepage.

## Hero/Tagline

Doesn't have to change much, but we should discuss with @JoelMarcey and see if the current tagline is still relevant

## Features

With v2, with have so many more features, maybe we should relook at this section and also change the design a little.

## Projects/Orgs using it

A list of logos of projects/orgs using it.

- Orgs: Meta, Microsoft, Amazon, Redis, Spotify, Supabase
- Projects: React Native, Jest, Relay, Redux

Suggestions welcome!

## Testimonials

The current testimonials are kinda outdated and are for Docusaurus v1. Displaying Tweets for v2 might be more relevant and appeal better as they are shorter and easier to read. Inspiration: https://supabase.com and https://turborepo.org/

We could take the first 10 and have a separate page (/testimonials) for the rest, and continuously update when we see new tweets.

- https://twitter.com/kentcdodds/status/1323806816019468288
- https://twitter.com/swyx/status/1454261201207054339
- https://twitter.com/paularmstrong/status/1387059593373700100
- https://twitter.com/sebastienlorber/status/1321784071815680000
- https://twitter.com/rachelnabors/status/1321787416089366529
- https://twitter.com/mweststrate/status/1181276252293853186
- https://twitter.com/acemarke/status/1452725153998245891
- https://twitter.com/yangshunz/status/1284536949718478848
- https://twitter.com/biantris_/status/1480259279487741953
- https://twitter.com/verdaccio_npm/status/1420187249145118722
- https://twitter.com/_aantipov/status/1384479759531495424
- https://twitter.com/iansu/status/1184149586048245760
- https://twitter.com/MThakkar_/status/972900687527866368
- https://twitter.com/pierregillesl/status/1372839188698001408
- https://twitter.com/johnny_reilly/status/1469238609266028545

@slorber has a [Twitter list](https://twitter.com/sebastienlorber/timelines/1392048416872706049) as well

cc @slorber @JoelMarcey @Josh-Cena

### Self-service

- [ ] I'd be willing to address this documentation request myself.