[BUG] Sidebar overlaps main chat content after Mac app update

[###]([url](url)) Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Description:

• Desktop app version: [check in app menu]
• Operating system: macOS 13.7.8 (22H730)
• Issue: After recent update, left sidebar overlaps chat content, cutting off text on left side
• Steps tried: App restart, computer restart, Reset App Data - none resolved the issue
• Screenshots: [attach your screenshot]

Steps to reproduce:

1. Open Claude Desktop app on macOS 13.7.8
2. Navigate to any chat
3. Observe sidebar overlapping main content area

<img width="1312" height="833" alt="Image" src="https://github.com/user-attachments/assets/4970294b-5a9f-4331-83fc-01e931695ac2" />

What Should Happen?

Steps to reproduce:

1. Open Claude Desktop app on macOS 13.7.8
2. Navigate to any chat
3. Observe sidebar overlapping main content area

Error Messages/Logs

Steps to Reproduce

1. Open Claude Desktop app on macOS 13.7.8
2. Navigate to any chat
3. Observe sidebar overlapping main content area

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

4.6

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_