Add RTL (Right-to-Left) support for VS Code extension chat panel

Feature Request

Description

The Claude Code VS Code extension chat panel currently only supports LTR (left-to-right) text direction. For users who communicate in RTL languages (Hebrew, Arabic, etc.), the text alignment and layout is incorrect and hard to read.

Requested Feature

Add RTL support for the chat panel in the VS Code extension, so that:

• User messages in RTL languages are properly aligned right-to-left
• The overall layout respects the text direction based on language detection or a user setting

Use Case

Users who interact with Claude Code in Hebrew, Arabic, or other RTL languages experience a suboptimal reading experience as all text is forced LTR.

Suggested Implementation

• Auto-detect text direction per message based on content (similar to how browsers handle dir="auto")
• Or add a setting like claudeCode.textDirection with options: ltr, rtl, auto