Add an onboarding agent #936
Description
After redesigning the settings panel, I noticed that vAmiga looked a bit awkward when launched without any installed ROMs. To improve the first-time experience, I implemented a small onboarding agent that guides new users through the initial setup. The agent will automatically appear when vAmiga is launched for the first time (when no ROMs are present).
At the moment, the onboarding consists of two panels, but it can be easily extended in the future.
I think it’s especially important to explain the AROS situation up front. When I launched an Amiga emulator for the very first time years ago, it booted into AROS, and I had no idea what was happening. Even though I hadn’t touched a real Amiga in years, I knew it looked different. This onboarding flow should help avoid that experience for new users.