fix(types): $getRouteBaseName parameter type (#2933)

Author: BobbieGoede

src/runtime/plugins/i18n.ts

@@ -42,6 +42,7 @@ import type {
   LocaleHeadFunction,
   LocalePathFunction,
   LocaleRouteFunction,
+  RouteBaseNameFunction,
   SwitchLocalePathFunction
 } from '../composables'
 
@@ -489,7 +490,7 @@ declare module '#app' {
      *
      * @returns The route base name. if cannot get, `undefined` is returned.
      */
-    $getRouteBaseName: (...args: Parameters<typeof getRouteBaseName>) => ReturnType<typeof getRouteBaseName>
+    $getRouteBaseName: (...args: Parameters<RouteBaseNameFunction>) => ReturnType<typeof getRouteBaseName>
     /**
      * Returns localized path for passed in route.
      *