Fix, now fully free

Hey everyone,

Just wanted to give you an update on the app! I've been busy tinkering and gave it a good refresh. Here's what's new:

• Bugs squashed! – Fixed a bunch of those annoying little issues.
• New Demo Mode! – Want to try it out before diving in? Now you can!
• Gemini API (totally free!) – Switched over to a new, completely free API, so no worries there.
• Custom Live2D Models! – This is a big one! You can now import and use your very own Live2D models.
• Two new models included! – To get you started, I've added "Frieren" and "Goth."
• Added lanugages options! – Now you can speak in Spanish, French etc.

Hope you enjoy the improvements!