Quick chat ignores "Github › Copilot › Chat: Locale Override" when ONLY using slash command without additional string.

[ZetabS]

• Copilot Chat Extension Version: v0.16.1
• VS Code Version: 1.90.2
• OS Version: Windows 11 Pro

Steps to Reproduce:

1. Set "Github › Copilot › Chat: Locale Override" to "ko". (or change vscode display language)
2. Write a simple code.
3. Select the code.
4. Press Ctrl + i.
5. Enter /explain

Expected: Response in the language set by the "Locale Override" (in my case, Korean), similar to the behavior in the "Chat View".

Actual: Response is in English.