build: remove astro types that are now in tsconfig

https://docs.astro.build/en/guides/typescript/#tsconfig-templates

Author: velut

src/env.d.ts

@@ -1,6 +1,3 @@
-/// <reference path="../.astro/types.d.ts" />
-/// <reference types="astro/client" />
-
 interface Window {
 	Alpine: import("alpinejs").Alpine;
 }