Upgrade Docusaurus version and remove unused dependencies

[alexandratran]

Description

• Upgrade Docusaurus 3.0.0 -> 3.4.0
• Remove unused dependencies:
  • react-player
  • remark-codesandbox (& remove from contribution guide)
  • remark-docusaurus-tabs
• Upgrade dependencies:
  • @metamask/design-tokens 1.11.1 -> 2.1.1
  • typescript 4.7.4 -> 5.4.5 (https://docusaurus.io/docs/migration/v3#typescript-v51)
• Replace external TS config @typescript/docusaurus with internal package @docusaurus/typescript (https://docusaurus.io/docs/migration/v3#typescript-base-config)

Issue(s) fixed

Fixes #

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Checklist

Complete this checklist before merging your PR:

• [ ] If this PR contains a major change to the documentation content, I have added an entry to the top of the "What's new?" page.
• [ ] The proposed changes have been reviewed and approved by a member of the documentation team.