🐞 The text was accidentally hidden

### Description

When the header of a blank line is entered, the rest of the text in the document is hidden.

### To Reproduce

1. The cursor moves to the beginning of a blank line
2. Press the Enter button
3. The rest of the text in the document was accidentally hidden

### Expected Behavior

Don't accidentally hide text

### Version Information

CodeEdit: [V0.1.0]
macOS: [14.5]
Xcode: [15.4]

### Additional Context

_No response_

### Screenshots

_No response_