feat: 2.0

[lxsmnsyc]

• Split entrypoint into multiple entry points
  • Component families are now exported via terracotta/<component> e.g. import { Combobox } from 'terracotta/combobox';
  • States are exported in terracotta/states
  • Fragment in terracotta/utils
• Fix auto-focus behavior to wait for element transition.
• Fix transitions to work properly on leave