refactor(frontend): update onboarding tour step for adding exercise

- Rename `AddNewExercise` tour step target to `ClickOnAddAnExerciseButton`
- Update tour step target in onboarding configuration
- Modify button class to match new tour step identifier

Author: IgnisDa

apps/frontend/app/lib/state/general.tsx

@@ -63,7 +63,7 @@ export enum OnboardingTourStepTargets {
 	OpenFitnessSidebar = "tour-step-open-fitness-sidebar",
 	OpenWorkoutsSection = "tour-step-open-workouts-section",
 	AddNewWorkout = "tour-step-add-new-workout",
-	AddNewExercise = "tour-step-add-new-exercise",
+	ClickOnAddAnExerciseButton = "tour-step-click-on-add-an-exercise-button",
 }
 
 const onboardingTourAtom = atomWithStorage<
@@ -255,7 +255,7 @@ export const useOnboardingTour = () => {
 					"This is the workouts section. Let's start by adding a new workout.",
 			},
 			{
-				target: OnboardingTourStepTargets.AddNewExercise,
+				target: OnboardingTourStepTargets.ClickOnAddAnExerciseButton,
 				content:
 					"You have started with an empty workout. Let's add a new exercise to it.",
 			},

apps/frontend/app/routes/_dashboard.fitness.$action.tsx

@@ -704,7 +704,9 @@ export default function Page() {
 										variant="subtle"
 										onClick={advanceTourStep}
 										to={$path("/fitness/exercises/list")}
-										className={OnboardingTourStepTargets.AddNewExercise}
+										className={
+											OnboardingTourStepTargets.ClickOnAddAnExerciseButton
+										}
 									>
 										Add an exercise
 									</Button>