Create a web app called "DevAvatar Creator" that helps software developers generate a unique cartoon-style avatar for their online profiles.

The app should have a clean, modern UI with the following input options:

- Hair color (e.g., black, blonde, purple, etc.)
- Favorite programming language (choose from JavaScript, Python, Java, C++, or "Other")
- A short personality trait description (e.g., "creative and detail-oriented", "fun-loving hacker", "calm and minimalist")

When the user submits these inputs, use the Imagen API to generate a high-quality cartoon-style avatar image that reflects their chosen hair color and personality traits. Optionally include small, fun visual hints about their favorite programming language (for example, subtle logos or color palettes).

The app should display the generated avatar prominently and offer options to download it or copy a shareable link.

Add friendly, supportive text in the UI that encourages users to share their avatar on their GitHub or DEV profile. Include clear instructions and make the experience feel fun and welcoming.

Deploy the app and provide a link so users can try it live.