Update for the macOS version

The Witness

You wake up, alone, on a strange island full of puzzles that will challenge and surprise you.

[list] [*] Updated the macOS version to run on macOS 13+ [*] Added the required signatures to prevent Gatekeeper pop-ups on macOS 10.14+ [*] Improved trackpad detection code on macOS. [*] Fixed that left-clicks on trackpads were sometimes incorrectly interpreted as right-clicks on macOS. [*] Fixed that launching The Witness on newer macOS versions showed a popup about monitoring input from other applications. [/list]