fix: augment vue rather than @vue/runtime-core

This removes augmentations of `@vue/runtime-core` in favour of only augmenting vue, which should fix issues when other packages (like `vue-router`) are only augmenting `vue` (see nuxt/nuxt#28542)

typings/global.d.ts

@@ -1,4 +1,4 @@
-declare module "@vue/runtime-core" {
+declare module "vue" {
   export interface GlobalComponents {
     VueToPrint: typeof import("vue-to-print")["VueToPrint"];
   }