fix(ui): resolve MDX paragraph line-height inheritance, implement drag-to-scroll slider, disable UI text selection

Former-commit-id: 4d03da2ca22a0119d156db12c9c1722bbba5a29e

next-env.d.ts

@@ -1,6 +1,6 @@
 /// <reference types="next" />
 /// <reference types="next/image-types/global" />
-import "./.next/types/routes.d.ts";
+import "./.next/dev/types/routes.d.ts";
 
 // NOTE: This file should not be edited
 // see https://nextjs.org/docs/app/api-reference/config/typescript for more information.