Tracking issue: Migration to React 18

[BasixKOR]

Prerequisites

• Get rid of react-router v5, or migrate to v6
  • V2 interface (should be migrated)
  • V1 interface (should be removed)
  • Monster Collection V1 (should be removed)
  • Transfer uses own routing implementation.

Steps

• Bump packages to React 18 compatible ones
• Try concurrent features on some parts that needs it
  • I'm planning to use useDeferredValue on tip indicator, since it causes a ton of UI updates.

[BasixKOR]

I expect that using the concurrent features on certain parts of the launcher could improve the perceived performance quite a lot. We need to figure out which components are causing frequent updates first though.