fix repetitive save of WorkoutItem, add: Onboarding, Defaults, Settings, Trainer/Trainee skeletons, reorder files, remove all Bindable

WorkoutsPlus/ContentView.swift

@@ -10,10 +10,11 @@ import SwiftData
 
 struct ContentView: View {
 		@Environment(\.modelContext) private var modelContext
+		@Default(\.isOnboarding) var isOnboarding
 		
 		var body: some View {
 				TabView {
-						WorkoutLog()
+						//						WorkoutLog()
 						WorkoutLibrary()
 								.tabItem {
 										Image(systemName: "figure.run.square.stack")
@@ -24,7 +25,7 @@ struct ContentView: View {
 										Image(systemName: "figure.run")
 										Text("Exercises")
 								}
-						DebugExerciseList()
+						DebugList()
 								.tabItem {
 										Image(systemName: "hammer")
 										Text("Debug")
@@ -35,6 +36,7 @@ struct ContentView: View {
 										Text("Settings")
 								}
 				}
+				.sheet(isPresented: $isOnboarding) { Onboarding() }
 		}
 }