Fix of the issue about smaller clickeable areas on slider with text & slider with text and value components

[edgargaza]

Referenced issue: #5

The clickeable areas from both the slider with text & slider with text and value were slightly smaller than the default slider, making it harder to click and drag to change the value.

[BattlefieldNoob]

please @edgargaza can you remove the changes on SliderConfig.cs? the imports seams to be not used in the code

Thanks