Update zh-cn.json and zh-hant.json

[LaunchLee]

No description provided.

[greptile-apps]

Greptile Summary

This PR updates Chinese localization strings for recent UI features.

• Translates Simplified Chinese settings, terminal, plugin, and update labels.
• Translates Traditional Chinese settings, terminal, plugin, and update labels.
• Preserves interpolation placeholders in the changed dynamic strings.

Confidence Score: 4/5

The changed locale files look mergeable after fixing the corrupted Simplified Chinese search label.

• The JSON shape is unchanged.
• Dynamic placeholders remain present in the changed strings.
• One visible zh-cn action label can render as corrupted text.

src/lang/zh-cn.json

Important Files Changed

Filename	Overview
src/lang/zh-cn.json	Adds Simplified Chinese translations for recently added UI strings, with one corrupted search-action label to fix.
src/lang/zh-hant.json	Adds Traditional Chinese translations and wording refinements for recently added UI strings.

_{Reviews (1): Last reviewed commit: "Update zh-cn.json and zh-hant.json" | Re-trigger Greptile}