QOL improvements on https://cosanostr.app

✅ Thememode, color and font now customizable

✅ More dense navbar + appbar = more content

//TODO(plotsklapps): 'WTF IS NOSTR' button as an onboarding.

https://nostrcheck.me/media/public/nostrcheck.me_8784015487300176921689321527.webp https://nostrcheck.me/media/public/nostrcheck.me_9853427335581694801689321532.webp