add effect to logseq-zotero-plugin

Attemps to fix issues:

Github releases checklist

[x] a legal package.json file.
[x] a valid CI workflow build action for Github releases. (theme plugin for this).
[x] a release which includes a release zip pkg from a successful build.
[x] a clear README file, ideally with an image or gif showcase. (For more friendly to users, it is recommended to have English version description).
[x] a license in the LICENSE file.