Convert masApps from list to set for better structure consistency. Add initialization for Homebrew in the Fish shell to ensure the environment is correctly set up.
This commit updates the default Homebrew configuration to include 'mas' alongside 'libusb' for the aarch64-darwin system. It also introduces an empty 'masApps' array for potential future use.
Added configuration to enable Homebrew on aarch64-darwin systems. Created a new module for managing Homebrew settings and added support for declarative tap management.
Harald Hoyer