enhancement: toHyphenCase() convert space to camelCase

[Soecka]

In toHyphenCase, I cann't convert to 'socia media' to 'socia-media'
data.ts:32
maybe we can polish the pattern of the regExp

function toHyphenCase(raw:string) {
  return raw.replace(
      /[A-Z]+|[^A-Za-z][A-Za-z]/g,
      (match, offset) => `${offset ? '-' : ''}${(match[1]||match[0]).toLowerCase()}`
  );
}

[TechQuery]

A pull request is welcomed.