fix(nuxt): move app augments to core `nuxt` types (#27900)

packages/nuxt/src/app/index.ts

@@ -1,5 +1,3 @@
-/// <reference path="types/augments.d.ts" />
-
 export * from './nuxt'
 
 export * from './composables/index'

packages/nuxt/types.d.mts

@@ -1,4 +1,5 @@
 /// <reference types="nitro/types" />
+/// <reference path="dist/app/types/augments.d.ts" />
 
 import type { DefineNuxtConfig } from 'nuxt/config'
 import type { RuntimeConfig, SchemaDefinition } from 'nuxt/schema'

packages/nuxt/types.d.ts

@@ -1,4 +1,6 @@
 /// <reference types="nitro/types" />
+/// <reference path="dist/app/types/augments.d.ts" />
+
 import type { DefineNuxtConfig } from 'nuxt/config'
 import type { RuntimeConfig, SchemaDefinition } from 'nuxt/schema'
 import type { H3Event } from 'h3'