introduce WorkoutItem, refactor ExerciseTemplate to Exercise

WorkoutsPlus/Workout/AddExerciseToWorkout.swift

@@ -10,24 +10,24 @@ import SwiftData
 
 struct AddExerciseToWorkout: View {
 		@Environment(\.modelContext) private var modelContext
-		@Query(sort: \ExerciseTemplate.name) private var exerciseTemplates: [ExerciseTemplate]
+		@Query(sort: \Exercise.name) private var exercises: [Exercise]
 		
 		@Bindable var workout: Workout
 		
 		var body: some View {
 				Group {
-						if !exerciseTemplates.isEmpty {
+						if !exercises.isEmpty {
 								List {
 										Section(header: Text("Excersises")) {
-												ForEach(exerciseTemplates) { exerciseTemplate in
-														AddExerciseToWorkoutListItem(exerciseTemplate, workout)
+												ForEach(exercises) { exercise in
+														AddExerciseToWorkoutListItem(exercise, workout)
 												}
 										}
 								}
 						} else {
 								ContentUnavailableView {
 										// TODO: Add Button that allows adding an exercise
-										Label("No Exercises", systemImage: ExerciseTemplate.systemImage)
+										Label("No Exercises", systemImage: Exercise.systemImage)
 								}
 						}
 				}
@@ -37,20 +37,20 @@ struct AddExerciseToWorkout: View {
 struct AddExerciseToWorkoutListItem: View {
 		@Environment(\.modelContext) private var modelContext
 		
-		var exerciseTemplate: ExerciseTemplate
+		var exercise: Exercise
 		var workout: Workout
 		
-		init(_ exerciseTemplate: ExerciseTemplate, _ workout: Workout) {
-				self.exerciseTemplate = exerciseTemplate
+		init(_ exercise: Exercise, _ workout: Workout) {
+				self.exercise = exercise
 				self.workout = workout
 		}
 		
 		var body: some View {
 				Button(action: {
-						workout.addExercise(from: exerciseTemplate)
+						workout.addExercise(exercise)
 				}) {
 						HStack {
-								Text(exerciseTemplate.name)
+								Text(exercise.name)
 										.foregroundStyle(.black)
 								Spacer()
 								Image(systemName: "plus.circle.fill")
@@ -67,5 +67,5 @@ struct AddExerciseToWorkoutListItem: View {
 
 #Preview("Empty Database") {
 		AddExerciseToWorkout(workout: Workout.sampleData.first!)
-				.modelContainer(for: ExerciseTemplate.self, inMemory: true)
+				.modelContainer(for: Exercise.self, inMemory: true)
 }