v2.1.0

• feat(gatsby-theme-docz): use mdxExtensions from config - @rakannimer
• feat(docz-core): add mdxExtensions to config - @rakannimer
• fix(gatsby-theme-docz): allow empty ts prop defaultValue - @rakannimer
• fix(docz): remove lowercasing of enum ts prop type - @rakannimer
• feat(docz): spread remaining props to Props component (#1276) - @selbekk