Tell VitePress to prefix each route with the current locale

[jtuchel]

I want to support multiple languages but for now the app only supports the german language. My docs folder looks like

.
└── docs
    ├── .vitepress
    └── de

The configuration looks like this example

import { defineConfig } from 'vitepress'

export default defineConfig({
    title: 'Project',
    themeConfig: {
        i18nRouting: true
    },
    locales: {
        de: {
            label: 'German',
            lang: 'de',
            themeConfig: {
                nav: [
                    { text: 'Autos', link: '/de/cars/' }
                ],
                sidebar: {
                    '/de/cars/': [
                        {
                            text: 'Autos',
                            items: [
                                { text: 'Startseite', link: '/de/cars/' }
                            ]
                        }
                    ],
                }
            },
        }
    }
})

The navigation only works when I prefix each route with the locale ( /de/... )

See https://stackblitz.com/edit/vite-hjmxsw

Is there a way to tell VitePress to do that for me since it already knows the themeConfig only refers to the german locale?