Safari Version 15.6.1 (macOS Catalina) extension won't work with latest update 2024.3.0

### Steps To Reproduce

1. Go to 'Safari on macOS Catalina'
2. Click on 'Bitwarden extension in Safari'

### Expected Result

Bitwarden extension loads up and can fill in or search within vault.

### Actual Result

White page loading, nothing happens.

### Screenshots or Videos

### Additional Context

_No response_

### Operating System

macOS

### Operating System Version

Catalina

### Web Browser

Safari

### Browser Version

_No response_

### Build Version

15.6.1 (15613.3.9.1.16, 15613)

### Issue Tracking Info

- [X] I understand that work is tracked outside of Github. A PR will be linked to this issue should one be opened to address it, but Bitwarden doesn't use fields like "assigned", "milestone", or "project" to track progress.