Lint: add ESLint additional plugins

[marcalexiei]

• Followup of feat: setup eslint at root level #27 (comment)

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we’re currently using:

• the ESLint recommended base config
• JSDoc rules
• a small set of React rules
• the standard react-hooks rules.

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We might need to add more plugins:

• typescript-eslint could be very useful if we decide to migrate the codebase to TypeScript.
  Using TypeScript would also simplify writing package code that auto-generates types, improving the experience for consumers.

  That said, a migration to TypeScript should be discussed in a dedicated issue.
  I think it’s something we should consider after publishing the first version of the packages,
  (using declaration files generated from JS via JSDoc).

• vitest eslint plugin (pending test(backend): migrate to vitest #95)

• node eslint plugin for apps/backend