Feature Request: User messages should be right-aligned in chat UI

Feature Request

Description

Currently, all messages in the Claude Code VS Code extension chat interface are left-aligned. In most modern chat applications (iMessage, WhatsApp, WeChat, etc.), user messages are displayed on the right side while assistant messages are on the left.

Proposed Solution

Implement right-alignment for user messages in the chat panel, similar to standard chat interfaces.

Benefits

• More intuitive user experience
• Better visual distinction between user and assistant messages
• Follows established UI patterns in chat applications

Mockup

[Assistant message on the left]

                    [User message on the right]
[Assistant message on the left]

Environment

• VS Code Extension: Claude Code
• Version: Latest
• OS: Windows 11

Thank you for considering this feature!