Fix protection (#44)

* Update EnviromnentValues+ValueTrackConfiguration.swift * Update HorizontalValueSliderStyle.swift * Update DefaultThumb.swift Co-authored-by: Paul Matyukov <pavel.matyukov@gmail.com>

Author: ay42

Sources/Sliders/Base/DefaultThumb.swift

@@ -1,6 +1,7 @@
 import SwiftUI
 
 public struct DefaultThumb: View {
+ public init() {}
  public var body: some View {
  Capsule()
  .foregroundColor(.white)

Sources/Sliders/ValueSlider/Styles/Horizontal/HorizontalValueSliderStyle.swift

@@ -133,6 +133,7 @@ extension HorizontalValueSliderStyle where Thumb == DefaultThumb, Track == Defau
 }
 
 public struct DefaultHorizontalValueTrack: View {
+ public init() {}
  public var body: some View {
  HorizontalTrack()
  .frame(height: 3)

Sources/Sliders/ValueTrack/EnviromnentValues+ValueTrackConfiguration.swift

@@ -1,6 +1,6 @@
 import SwiftUI
 
-extension EnvironmentValues {
+public extension EnvironmentValues {
  var valueTrackConfiguration: ValueTrackConfiguration {
  get {
  return self[ValueTrackConfigurationKey.self]