highlighted text stuck as cursor hovers sections on page "Tutorial: Systems in C++"

## **Steps**

1. navigate to https://ecsact.dev/start/tutorials/systems-in-cpp
2. hover cursor next to "Introduction" in the middle of page
3. scroll through top to bottom while speculating "On this page" section top right
4. slowly scroll and scroll fast for result

## **Result**
highlighted text gets stuck sometimes on "Next Steps" or "Code Generation" 