chore: Bump organ dependency version to 2.0.0

feat: Optimize rendering performance and update dependencies

doc: New section "Development"

fix: Address rendering bugs, XSS, and crash safety

fix: Better heuristic for defining css theme

feat: Don't limit the number of themes from pico-themes

fix: Don't include highlight.js when the buffer has begin_example

fix: Use @latest instead of @main for jsdelivr css

chore: Bump organ dependency to 0.3.0

chore: Bump organ dependency to 0.2.0