[BUG] Text is replaced in the whole note content instead of only the metadata section

[fidel-perez]

Imagine you have a note with this starting text:

---
readProgress: 26471
---
When to Take a Break
readProgress: 26471

When you run metaedit, and edit the variable inside the metadata (readProgress), both lines will change, but it should only edit the metadata part.

Thank you!