[🐛 BUG] Cannot compile `mdxFlowExpression` node

[zdunecki]

Happens if we comment codeblocks on .mdx files:

Error: Cannot compile `mdxFlowExpression` node. It looks like you are using MDX nodes with `hast-util-raw` (or `rehype-raw`). If you use this because you are using remark or rehype plugins that inject `'html'` nodes, then please raise an issue with that plugin, as its a bad and slow idea. If you use this because you are using markdown syntax, then you have to configure this utility (or plugin) to pass through these nodes (see `passThrough` in docs), but you can also migrate to use the MDX syntax
    at unknown (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/hast-util-raw/lib/index.js:393:11)
    at one (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/zwitch/index.js:108:17)
    at Object.handle (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/hast-util-raw/lib/index.js:83:7)
    at all (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/hast-util-raw/lib/index.js:139:13)
    at root (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/hast-util-raw/lib/index.js:155:3)
    at one (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/zwitch/index.js:108:17)
    at raw (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/hast-util-raw/lib/index.js:89:3)
    at file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/rehype-raw/lib/index.js:33:41
    at wrapped (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/trough/lib/index.js:160:27)
    at next (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/trough/lib/index.js:86:23)
    at done (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/trough/lib/index.js:194:7)
    at then (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/trough/lib/index.js:204:5)
    at wrapped (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/trough/lib/index.js:181:9)
    at next (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/trough/lib/index.js:86:23)
    at done (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/trough/lib/index.js:194:7)
    at then (file:///Users/zdunecki/Code/livesession/livesession-docs/.xyd/host/node_modules/trough/lib/index.js:204:5)