Add skiing icons in onboarding flow (#5)

# Add skiing icons in onboarding flow


## 📝 Code of Conduct & Contributing Guidelines 

By submitting creating this pull request, you agree to follow our [Code
of
Conduct](https://github.com/CS342/.github/blob/main/CODE_OF_CONDUCT.md)
and [Contributing
Guidelines](https://github.com/CS342/.github/blob/main/CONTRIBUTING.md):
- [x] I agree to follow the [Code of
Conduct](https://github.com/CS342/.github/blob/main/CODE_OF_CONDUCT.md)
and [Contributing
Guidelines](https://github.com/CS342/.github/blob/main/CONTRIBUTING.md).

Co-authored-by: Andreas Bauer <[email protected]>

ExampleApplication/Onboarding/Welcome.swift

@@ -21,23 +21,23 @@ struct Welcome: View {
             areas: [
                 OnboardingInformationView.Content(
                     icon: {
-                        Image(systemName: "apps.iphone")
+                        Image(systemName: "figure.skiing.downhill")
                             .accessibilityHidden(true)
                     },
                     title: "WELCOME_AREA1_TITLE",
                     description: "WELCOME_AREA1_DESCRIPTION"
                 ),
                 OnboardingInformationView.Content(
                     icon: {
-                        Image(systemName: "shippingbox.fill")
+                        Image(systemName: "figure.disc.sports")
                             .accessibilityHidden(true)
                     },
                     title: "WELCOME_AREA2_TITLE",
                     description: "WELCOME_AREA2_DESCRIPTION"
                 ),
                 OnboardingInformationView.Content(
                     icon: {
-                        Image(systemName: "list.bullet.clipboard.fill")
+                        Image(systemName: "figure.skiing.crosscountry")
                             .accessibilityHidden(true)
                     },
                     title: "WELCOME_AREA3_TITLE",