Type error when parsing the comments

[shuding]

Here the regexp returns null for specific code comments, which results in an Uncaught TypeError: null is not iterable error:

// hello → works

//hello  → errors if there's no space after //
// 你好   → errors
// å     → errors

codehike/packages/mdx/src/plugin/annotations.ts

Lines 62 to 65 in 60e0c20

	const commentRegex = /\/\/\s+(\w+)(\S*)\s*(.*)/
	const [, key, focusString, data] = commentRegex.exec(
	comment
	)

[github-actions]

🚀 Issue was released in v0.3.0 🚀