[Platform UI 2.0] Typography, Text Utilities, and Spacer Utilities

[mrtrimble]

Issue: https://github.com/ritterim/platform-ui/issues/840 https://github.com/ritterim/platform-ui/issues/845

Updates:

• Installs packages
  • utopia-core-scss - Utopia core to bake in type and space calculators [LINK]
  • lightningcss - Post processing/minification of built CSS file [LINK]
• Core
  • Typography
    • Adds Type Scale calculator
    • Adds default typography
  • Elements
    • Adds blockquote styles
  • Spacing
    • Adds Space calculator
• Layouts
  • Adds container
• Utilities
  • Text
  • Alignments
  • Casings
  • Decoration
  • Size
  • Styles
  • Weights
  • Wrap
  • Flow
  • Spacer utilities
    • padding, margin
    • inline, inline-start, inline-end, block, block-start, block-end, top, right, bottom, left

[hougasian]

Let's document, in every PR, a migration guide 😄

[mrtrimble]

Added migration-guide.md document