Caret jumps to the end of the editor when saving

### Please answer the following questions for yourself before submitting an issue

- [X] Filters were updated before reproducing an issue
- [X] I checked the [knowledge base](https://adguard.com/kb/) and found no answer
- [X] I checked to make sure that this issue has not already been filed

### AdGuard Extension version

v4, v5

### Browser version

Chrome

### OS version

Windows 10

### Ad Blocking

AdGuard Base filter

### Privacy

_No response_

### Social

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### Annoyances

_No response_

### Security

_No response_

### Other

_No response_

### Language-specific

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### What Tracking protection options do you have enabled?

_No response_

### Issue Details

Steps to reproduce:
1. Add 5 lines
2. Save
3. Edit any line, except the last
4. Save.

### Expected Behavior

Caret position saves position.

### Actual Behavior

Caret jumps to the end of the editor.

### Screenshots

Screenshot 1

### Additional Information

_No response_