Ernst style timeline

- [x] Fixes timeline styling
- [x] Puts timeline domain at beginning and end of axis
- [x] Puts timestate.at as a label to the aggwindow.
- [x] The timeine is a little bigger to give enough space for play button, axis and aggwindow-label, 
- [x] The timeline only grows with >1 eventtypes or with rain and at least one eventtype.
- [x] Use padding.top to create space for aggwindow-label.
- [x] Delay futureIndicator and aggwindow transtions when timeline is shrinking.
- [x] Decrease size of play button.