[bug] Network key generator doesn't work when previously empty

[larstobi]

Version
master

Build/Run method

• Docker
• PKG
• Manually built (git clone - npm install - npm run build )

Describe the bug
When the network key field is empty, and you click the generate key button, it doesn't work. If you manually put in a key, save, and then try to regenerate the key, it works.

To Reproduce
Steps to reproduce the behavior:

1. Have empty network key field, also in settings.json
2. Click on generate key button
3. No key is being put in the field

Expected behavior
A key being put in the field.