v1.0.0-beta.6

• add commitizens
• add copy clipboard in SG
• add custom drawer comp to style guide
• add eslint and stylelint cache
• add font scaling
• add kss helpers
• add negative spacing to space trait
• add size-limit
• fix circle button content alignment and icon size
• remove grid component and use flex and size trait instead
• update assets and manifest paths
• update font spec
• update font weight variables
• update getting started documentation
• update nav menus
• update npm packages
• update splash template
• update style guide template and UI.