fix(vue): make useAppConfig reactive

Resolves #3952

Co-Authored-By: Hugo Richard <hugo.richard@epitech.eu>

src/runtime/vue/composables/useAppConfig.ts

@@ -1,3 +1,6 @@
+import { reactive } from 'vue'
 import appConfig from '#build/app.config'
 
-export const useAppConfig = () => appConfig
+const _appConfig = reactive(appConfig)
+
+export const useAppConfig = () => _appConfig

src/runtime/vue/stubs.ts

@@ -9,6 +9,7 @@ import { useColorMode as useColorModeVueUse } from '@vueuse/core'
 export { useHead } from '@unhead/vue'
 export { useRoute, useRouter } from 'vue-router'
 
+export { useAppConfig } from './composables/useAppConfig'
 export { defineShortcuts } from '../composables/defineShortcuts'
 export { defineLocale } from '../composables/defineLocale'
 export { useLocale } from '../composables/useLocale'
@@ -30,8 +31,6 @@ export const useColorMode = () => {
   }
 }
 
-export const useAppConfig = () => appConfig
-
 export const useCookie = <T = string>(
   _name: string,
   _options: Record<string, any> = {}