* Add TypeScript to app-frontend Co-authored-by: Evan Song <52982404+ferothefox@users.noreply.github.com> * Switch app-frontend to ESLint 9 & Nuxt config * Fix ESLint issues after config change in app-frontend --------- Co-authored-by: Evan Song <52982404+ferothefox@users.noreply.github.com>