consider migrating to Vite #40
Description
Currently we use nextjs as the react framework for the CashScript playground, however we don't use any of the nextjes features.
Nextjs uses webpack (turbopack?) as the bundler which isn't the fastest
Migrating to Vite would speed up builds (dev and prod) and cut down dependencies.
Also it's becoming the standard way to build react SPA apps.
Reasons to hold off for a while: Vite is in the process of migrating to rolldown-vite and we can still consider if we might need routing in the SPA after all. NextJs has routing built in directly so might be easier to work with on this front.