Changes:
- Added greek translation (thanks @mechpanos !)
- Show default timeslot settings when switching editor mode prior to making modifications
- Fix bug causing card title to be hidden wrongly
- Fix bug causing
scriptentities to show up in action picker, regardless of user configuration - Fix incorrect display of condition value equal to '0'
- Fix bug causing offset w.r.t. sunrise/sunset to be wrongly calculated
- Improve handling of customize actions which overlap with built-in actions