Disable installing a packages that are already installed

At the end of the script, optional extras could be selected for installation. However, if one of those were already installed, this would cause a crash.

This fixes that by disabling those from being installed.

Fix Homebrew Cask changes; upgrade outdated dependencies

v2.2.0

v2.2.0

:bug: Fix Yarn installation

• Update brew flag for Yarn install

v2.0.0

:sparkles: make standalone binary during build