[Feature] 添加 extraField.ts 到插件中

[Geo123abc]

Is there an existing issue for this?

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Environment

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• Zotero Version:
• Plugin Version:

Describe the feature request

添加下面这个模块到插件中，以方便调用，对 extra字段进行修改

zotero-plugin-toolkit/src/tools/extraField.ts at master · windingwind/zotero-plugin-toolkit

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[github-actions]

🚀 This ticket has been resolved in v1.0.0-beta.43. See Release v1.0.0-beta.43 for release notes.

[windingwind]

Zotero.ActionsTags.api.utils.ExtraField is now supported.