v0.7.4

• Adds experimental support for React components (<HStack>, <VStack>, <ZStack>, and <Spacer>)
• Patched stack logic (user-facing API is unchanged)
• The JavaScript runtime should now be accessible as a browser dependency: <script src=".../dist/browser">
• The following classes have been renamed:
  • a-0 → inset-0
  • x-0 → inset-x-0
  • y-0 → inset-y-0
  • t-0 → top-0
  • tr-0 → top-right-0*
  • r-0 → right-0*
  • b-0 → bottom-0*
  • br-0 → bottom-right-0*
  • l-0 → left-0*
  • t-0 → top-0*
  • tl-0 → top-left-0*
  • translate-x-0 → x-0
  • translate-y-0 → y-0

*Note that place-* directions have now been updated to follow this pattern.