No export from CSS

[ltspicer]

Describe the bug
When exporting a project, the entries in the CSS tab are not exported.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Project-Import/Export'
2. Click on 'Export (normal)'

Expected behavior
After importing, the CSS entry is empty.

Screenshots & Logfiles

This field is empty after import.

Versions:

• Adapter version: 1.5.6
• Plattform: Linux (Debian)
• Node.js: v20.19.5
• NPM: 10.8.2
• JS-Controller version: 7.0.7