Make Actions conform to Equatable to avoid major changes

Author: heinzl

Sources/ComposableNavigation/ModalNavigation/ModalNavigation.swift

@@ -22,7 +22,7 @@ public struct ModalNavigation<Item: Equatable> {
 	}
 
 	@CasePathable
-	public enum Action {
+	public enum Action: Equatable {
 		case set(StyledItem?, animated: Bool = true)
 		case dismiss(animated: Bool = true)
 		case presentFullScreen(Item, animated: Bool = true)

Sources/ComposableNavigation/StackNavigation/StackNavigation.swift

@@ -26,7 +26,7 @@ public struct StackNavigation<Item: Equatable> {
 	}
 
 	@CasePathable
-	public enum Action {
+	public enum Action: Equatable {
 		case pushItem(Item, animated: Bool = true)
 		case pushItems([Item], animated: Bool = true)
 		case popItem(animated: Bool = true)

Sources/ComposableNavigation/TabNavigation/TabNavigation.swift

@@ -28,7 +28,7 @@ public struct TabNavigation<Item: Equatable> {
 	}
 
 	@CasePathable
-	public enum Action {
+	public enum Action: Equatable {
 		case setActiveItem(Item)
 		case setActiveIndex(Int)
 		case setItems([Item], animated: Bool = true)