Slider layout not behaving like the default Slider()

[MrWaggel]

Problem:
When you put a RangeSlider() underneath a default Slider(), the width doesn't match.

Possible solution
In class file, change line 520
static const double _overlayDiameter = _overlayRadius * 2.0;
static const double _overlayDiameter = _overlayRadius;

and at line 733 under the void performResize() {} method to preserve the correct height
constraints.hasBoundedHeight ? constraints.maxHeight : _overlayDiameter,
constraints.hasBoundedHeight ? constraints.maxHeight : _overlayDiameter * 2,

But I'm not sure if it creates the wanted behavior for other cases, if you want I'll generate a pull request.

Awesome library and great documentation by the way my Wallonian friend, much appreciated!
Greetings from the north

[boeledi]

Hi, I just released version 1.1.0 which now integrates your changes. Thanks for your contribution.