Update app.js
- adjust label position to improve readability on light themes
- add icons to display service states
Update ChangeLog
- compact old and add new changes
Update lib.js
- fix logfile correction in `setEnabled(...)` to make disable logging possible
- simplify logfile checks
Update README.md
- add icons of the service states
Update settings.js
- fix error on reading a non string logfile value
Add icons: disabled.png, nolog.png and powersaving.png
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