Non-standard character set does not make 'rewrites' work

[Xaviw]

Describe the bug

If I set Chinese in 'rewrites', it will not work normally. Check the source code and find that the reason is that the url in 'rewritesPlugin' is encoded and cannot match the incoming value.

// src/node/plugins/rewritesPlugin.ts
export const rewritesPlugin = (config: SiteConfig): Plugin => {
  return {
    name: 'vitepress:rewrites',
    configureServer(server) {
      // dev rewrite
      server.middlewares.use((req, _res, next) => {
        // this url is encoded
        if (req.url) {
          const page = req.url
            .replace(/[?#].*$/, '')
            .slice(config.site.base.length)
          // Value in 'rewrites.inv' not encoded
          if (config.rewrites.inv[page]) {
            req.url = req.url.replace(page, config.rewrites.inv[page]!)
          }
        }
        next()
      })
    }
  }
}

Reproduction

Use Chinese as the value of the 'rewrites' configuration

Expected behavior

The value passed in can be recognized normally

System Info

System:
    OS: Windows 10 10.0.22621
    CPU: (16) x64 13th Gen Intel(R) Core(TM) i5-13400F
    Memory: 7.62 GB / 15.81 GB
  Binaries:
    Node: 18.14.1 - ~\AppData\Local\Volta\tools\image\node\18.14.1\node.EXE
    npm: 9.3.1 - ~\AppData\Local\Volta\tools\image\node\18.14.1\npm.CMD
  Browsers:
    Edge: Spartan (44.22621.1265.0), Chromium (110.0.1587.57)
    Internet Explorer: 11.0.22621.1

Additional context

No response

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