Nature is amazing! (#6)

# Add Animals!

## ♻️ Current situation & Problem
- The application is missing a lot of animals!


## ⚙️ Release Notes 
- Add some cool animals!


## 📚 Documentation
- No need to update the documentation, only smaller visual changes


## ✅ Testing
- No automated testing added yet. A bit too much pressure to do this in
front of the class.


## 📝 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).

ExampleApplication/Onboarding/Welcome.swift

@@ -29,15 +29,15 @@ struct Welcome: View {
                 ),
                 OnboardingInformationView.Content(
                     icon: {
-                        Image(systemName: "figure.disc.sports")
+                        Image(systemName: "lizard.fill")
                             .accessibilityHidden(true)
                     },
                     title: "WELCOME_AREA2_TITLE",
                     description: "WELCOME_AREA2_DESCRIPTION"
                 ),
                 OnboardingInformationView.Content(
                     icon: {
-                        Image(systemName: "figure.skiing.crosscountry")
+                        Image(systemName: "fish.fill")
                             .accessibilityHidden(true)
                     },
                     title: "WELCOME_AREA3_TITLE",