v0.8.1

Changelog:

• Fix transforming into case class with var fields (#400, fixed in #401), thanks to @hughsimpson for finding and fixing the bug as the first contribution!
• Fix preventing to use implicits if .into.transform sets any flag (before it prevented it only for override with a value/function) (#413, fixed in #412)
• Enable Inkuire in Scala 3's Scaladocs searching (#399 , fixed in #402)