Improve vue-i18n example

[nlepage]

Problem

When running the vue-i18n example, and switching the browser to korean using this command (on Linux):

LANGUAGE=ko pnpm dev

The translations from vue-i18n are still in english, although "vanilla" translation are in korean:

Solution

Give the locale to vue-i18n in i18n.ts works fine.

Additional info

Using as any for messages isn't friendly with recommended Typescript eslint rules, switching to as Record<I18nLocales, I18nSchema> is more accurate.

Thanks for your work!