UI Bug: Chat view container overflows and covers VS Code line numbers as chat history grows during resizing

Before submitting your bug report

• I've tried finding an answer on the Continue docs site
• I'm not able to find an open issue that reports the same bug
• I've seen the troubleshooting guide on the Continue Docs

Relevant environment info

OS: Windows

Continue version: 
2.1.0

IDE version: VSCode 1.126.0

Description

When using the Continue extension in the primary/secondary side bar, resizing the container causes the Chat View to permanently "eat" a fixed width and bleed into the editor area, covering the line numbers/gutter.

Crucial detail: This bug is directly tied to the volume of chat content. When opening a fresh new session with no messages, the UI layout and resizing work perfectly. However, as the conversation grows (more chat bubbles and code blocks are rendered), the layout breaking becomes progressively worse. The dynamic content seems to be forcing a minimum width that prevents the Webview from shrinking properly.

This behavior only occurs in the Chat page; other pages work perfectly.

To reproduce

1. Open a new Chat session in the sidebar (resizing works fine here).
2. Chat with the AI until there are several messages and code blocks in the history.
3. Drag the sidebar divider to make it wider, then try to narrow it down.
4. Notice that the Chat view UI is now permanently oversized and overflows onto the editor's line numbers. The more content in the chat, the wider the "eaten" space becomes.

Log output

Start at the Chat page entry point in the Continue VS Code extension and reproduce the layout with a growing chat history, then resize the sidebar repeatedly. Trace the rendered chat bubbles and code blocks for sizing constraints; done means the Chat view shrinks normally without covering the editor line numbers or gutter.