Slugify function for vuepress is outdated

[Dilant]

Vuepress has updated its slugify function (for both v1 and next/v2):

const rControl = /[\u0000-\u001f]/g
const rSpecial = /[\s~`!@#$%^&*()\-_+=[\]{}|\\;:"'“”‘’–—<>,.?/]+/g
const rCombining = /[\u0300-\u036F]/g

export const slugify = (str: string): string =>
  str
    .normalize('NFKD')
    // Remove accents
    .replace(rCombining, '')
    // Remove control characters
    .replace(rControl, '')
    // Replace special characters
    .replace(rSpecial, '-')
    // Remove continuos separators
    .replace(/-{2,}/g, '-')
    // Remove prefixing and trailing separators
    .replace(/^-+|-+$/g, '')
    // ensure it doesn't start with a number (#121)
    .replace(/^(\d)/, '_$1')
    // lowercase
    .toLowerCase()

It adds steps of normalizing and removing accents, and no longer requires diacritics dependency. Also, rSpecial adds some new characters.

It's time to fix it now, but should we change defaultSlugify function directly or add a new function / config for vuepress preset?