Release 0.11.0

Added

• Add config.toml root-level property "hooks" (Array<String>) which
  executes the provided strings after a scheme is applied
• Add colour styling to --help text
• Add instructions to install via Homebrew

Fixed

• Fix bug where item hook template variable %f returns a path to
  theme file in the repository template instead of the copied version
  under ~/.local/share/tinted-theming/tinty

Updated

• Remove unnecessary helper function and optimise code