Add onboarding assets for application

[RizwanMunawar]

@asabri97 Hi, based on your request. Thank you!

🛠️ PR Summary

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🌟 Summary

Added new onboarding images to enhance the user experience.

📊 Key Changes

• Introduced three new onboarding images: step1.png, step2.png, and step3.png.
• These images are now part of the application's onboarding process.

🎯 Purpose & Impact

• 🖼️ Improved Visual Guidance: Provides users with a clear and visually appealing guide during onboarding.
• 🚀 Better User Experience: Helps new users understand the app's features or steps more intuitively, reducing confusion.
• 🌟 Enhanced Engagement: Likely to make the onboarding process smoother and more user-friendly for new users.

[UltralyticsAssistant]

👋 Hello @RizwanMunawar, thank you for submitting an ultralytics/assets 🚀 PR! To ensure a smooth review process and seamless integration of your contribution, please review the following checklist:

• ✅ Define a Purpose: Clearly explain the purpose of your PR in the description and link to any relevant issues if applicable. Ensure commit messages are well-structured, descriptive, and follow the project's conventions.
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For more details about contributing, refer to our Contributing Guide.

Thank you for taking the time to enhance the repository by adding onboarding assets 🙌! The new images (step1.png, step2.png, step3.png) for the onboarding process look promising and will undoubtedly improve the onboarding experience for users. We’ll review the additions to ensure optimal alignment with project goals.

Keep an eye out for feedback from an Ultralytics engineer, who will assist soon. In the meantime, don’t hesitate to leave a comment if you have questions or need further clarification. Your contributions are appreciated! 🚀

_{Made with ❤️ by Ultralytics Actions}

[UltralyticsAssistant]

🌟 Your PR has been merged! 🎉

Huge thanks to @RizwanMunawar for leading this effort and to @asabri97 for collaborating—your contributions have brought life to the onboarding experience with these beautiful new visuals. These images will undoubtedly leave a lasting impact on users as they start their journey!

As Leonardo da Vinci once said, "Simplicity is the ultimate sophistication." Your work showcases how thoughtful design can simplify and enhance the user experience in profound ways.

Thank you for helping us make our tools not only functional but truly intuitive and engaging. 🚀 Keep shining! 🌟