Fonts didn't show the preview in the Richdocuments App's Config

[hammeractual]

Describe the bug
Fonts didn't show the preview in the Richdocuments App's Config while the physical file exist in the server directory.

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
All fonts show the preview

Screenshots

Client details:

• OS: Windows 11
• Browser: Chrome, Edge
• Version: Latest version
• Device: Desktop

Server details

Operating system: Ubuntu 22.04

Web server: Apache 2.4.52

Database: MariaDB 10.11.6

PHP version: 8.2.13

Nextcloud version: 28.0.0

Version of the richdocuments app: 8.3.0

Version of Collabora Online: 23.05.5.2

Logs

Nextcloud log (data/nextcloud.log)

Insert your Nextcloud log here

Browser log

Insert your browser log here, this could for example include:

a) The javascript console log
b) The network log
c) ...