[Broken Website] man.archlinux.org (Safari only)

### 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 page is entirely not converted in dark mode.

### Website Address

https://man.archlinux.org

### Steps To Reproduce

1. Open the link above using Safari.
2. Toggle dark mode in Dark Reader.

### Screenshots

### Operating System

macOS Ventura 13.4.1 (c)

### Web Browser name and version

Safari Version 16.5.2 (18615.2.9.11.10)

### Dark Reader version

1.4.6

### Additional Context

_No response_