[Broken Website] Slack Web Application

### Prerequisites

- [X] I [searched for any existing report](https://github.com/darkreader/darkreader/issues?q=is%3Aissue) about this website issue to avoid opening a duplicate.
- [X] I can reproduce this website issue in a new, unmodified web browser profile with Dark Reader installed as the only extension.

### Website Issue Description

The extension crashes Slack web application when enabled. No console output is produced.

### Website Address

https://app.slack.com/client/...

### Steps To Reproduce

1. enable extension
2. replace link with a valid slack channel
3. crash

### Screenshots


### Operating System

Window 10 64bit

### Web Browser name and version

Chrome Version 119.0.6045.200 (Official Build) (64-bit)

### Dark Reader version

4.9.70

### Additional Context

_No response_