Elementa throws NoSuchElementException when using empty lists in Markdown Component

[BlackBeltPanda]

Describe the bug
When trying to create a Markdown Component with a character that's also a markdown prefix, such as a single hyphen ("-") which normally denotes a list, Elementa will throw a NoSuchElementException and not render the screen.

To Reproduce
Steps to reproduce the behavior:

1. Create a Markdown Component
2. Set the components text content to "-"
3. See error

Expected behavior
A list prefix with no other content should probably just render the prefix itself.

Additional context
It's possible that the same would occur for other elements that expect a markdown prefix to be followed by some content, but I haven't tested that to make sure.