bug when opening file: no-font

[youarecode]

Preflight Checklist

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

You must agree to search and the code of conduct. You must fill in this entire template. If you delete part/all or miss parts out your issue will be closed.

If you are technical, you should reporting bugs along the lines of https://marker.io/blog/how-to-write-bug-report. If you are not technical, we will make allowances, please try to make an effort to understand the process.

Describe the bug
font typing are missing when opening a file, so i can't choose my file directories

• note, it worked on version 24

To Reproduce
Steps to reproduce the behavior:

1. file -> open
2. everything is gibberish

Expected behavior
be able see the list of files in english of my system

• not a bunch of squares

Screenshots

draw.io version (In the Help->About menu of the draw.io editor):

• draw.io version 25.0.1
  (it worked on ver 24)

Desktop (please complete the following information):

• OS: KDE NEON 6.2
• it works on browsers

Additional context
my file system explorer is named "DOLPHIN 24.08.3"

POSSIBLE SOLUTION
i might need to install some font into my system? is that right?