Feature Request: Allow Copilot Chat to use full width when the Secondary Side Bar is maximized

[junjian-yuan]

🏷️ Discussion Type

Product Feedback

💬 Feature/Topic Area

VS Code

Body

Description:
I would like GitHub Copilot Chat in VS Code to support a full-width layout when the Secondary Side Bar is maximized.

Current behavior:
When the Secondary Side Bar is expanded to a large width, the Copilot Chat content area still keeps a relatively narrow maximum width and remains centered.

Expected behavior:
The Copilot Chat content area should be able to expand with the available width of the Secondary Side Bar.

Possible solutions:

1. Allow the chat content area to automatically use the full available width.
2. Provide a setting such as github.copilot.chat.fullWidth.
3. Provide layout options such as Compact, Comfortable, and Full Width.

Use case:
On wide screens or large monitors, the current centered layout wastes a lot of horizontal space. A full-width layout would make it easier to read long answers, code snippets, diffs, and multi-turn conversations.

Additional context:
This would be especially useful when using Copilot Chat in the Secondary Side Bar with the side bar maximized.

[github-actions[bot]]

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