Feature/layout flex

[zakbutcher]

Net New

• Flex subset component of Box to reduce prop bloat
  • Supports flex-direction, align-items, align-self, justify-content, and various preset flex definitions

Updates

• Remove @use statements in .scss files - it seems these weren't doing anything to begin with
• Change import paths for foundation components to just foundations
• Remove experimental boolean prop api in favor of traditional approach.
  • TypeScript does not appear to be able to parse/type-check props with hyphens in their name.
  • I believe, although more verbose, d="flex" is more approachable than dFlex and it resolves the issue of having undefined as an always-valid prop value

Bugfixes

• Change absolute import paths to relative because typescript (really javascript...) won't play nice with module resolution for packaged code. i.e. you cannot use absolute import paths for any typescript-specific features (and one that doesn't make sense yet!):
  • typeguards must be imported using relative paths
  • global / utility types must be imported using relative paths
  • global / utility functions(???) must be imported using relative paths

[zakbutcher]

Resolves #4