Translation updates for zh-cn.
Update zh-cn translation.

1. No translation for 'Finder'.
2. Translate also 'Project Setting for...'.
Update zh-cn translation.
Merge remote-tracking branch 'upstream/master'
Update zh-cn translation.

1. Replace `Live Development` with `Live Preview`.
2. Update translation for `EXTENSION_UPDATE_INSTALLED`.
3. Add the 'Last translated for ...' line.
zh-cn translation: fix 'last translated' SHA.
Merge pull request #7259 from peterfyj/master

Translation updates for zh-cn.