en to zh_CN translation catalogue (3 entries)

[ctx: A toolbar button tooltip for the import from Word feature.]
en: Import from Word
zh_CN: 从 Word 导入

[ctx: An error message shown to the user when an error occurred while importing the Word file.]
en: An error occurred while importing the Word file.
zh_CN: 导入 Word 文件时出错了。

[ctx: Aria label set on Import from Word button while importing Word document.]
en: Importing Word document
zh_CN: 正在导入 Word 文档
