Cursor seems to be invisible when editing code

[hamlim]

Noticed this both on the codesandbox demo as well as my personal site. When editing code the cursor is not visible. It is visible on the react-simple-code-editor website however.

Things to look into:

• Does setting the theme to undefined and themeing via css show the cursor?
• Does swapping out the highlighter for prismjs directly show the cursor?