v0.12.0-rc.0

!!!Note: as of v0.12.0 we'll be requiring at least Elixir 1.16!!!

0.12.0-rc.0

This is a major update that adds fixes and support for new operations:

• CI improvements - @axelson
• Formatting updates - @axelson
• Support for Elixir 1.16 - @axelson
• Update getting started guide for Scenic in supervision tree - @amclain
• Fix already_started error propogation failure - @seb3s
• Add development Nix flake - @crertel
• Reduce makefile compilation spam - @jjcartsens
• Simplify default_pin and centroid code - @seb3s
• Add new input events (:btn_pressed, :btn_released, :dropdown_opened, :dropdown_closed, :dropdown_item_hover, :focus, :blur) - @GPrimola
• Add warning for missing handle_input/3 on request_input/2 - @BinaryNoggin
• Add alpha channel to sprites - @seb3s
• Add script arc functions - @GPrimola
• Add extended rounded rectangle drawing - @GPrimola
• Assorted updates for deprecations and warnings

New Contributors

• @amclain made their first contribution in #291
• @adkron made their first contribution in #293
• @seb3s made their first contribution in #294
• @rkenzhebekov made their first contribution in #303
• @ohrite made their first contribution in #321
• @jjcarstens made their first contribution in #340
• @GPrimola made their first contribution in #297

Full Changelog: v0.11.1...v0.12.0-rc.0