Support Localized symbol form of term `and` as `和` in American Psychological Association 7th edition for `zh` locale

[jiaojiaodubai]

I used Zotero's build-in style editor to make some slight changes to APA 7 for a user who are not familiar with XML, I tried adding following codes, but it didn't work.

<locale xml:lang="zh">
  <terms>
    <term name="and" form="symbol">和</term>
  </terms>
</locale>