`$replace` rules with comma work incorrectly

### 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

4.4.30

### Browser version

Firefox

### OS version

Windows 11

### Ad Blocking

AdGuard Base filter

### Privacy

_No response_

### Social

_No response_

### Annoyances

_No response_

### Security

_No response_

### Other

_No response_

### Language-specific

_No response_

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

_No response_

### Issue Details

Steps to reproduce:
1. Add this rule:
```adblock
||example.org^$replace=/Example Domain/Example\, Domain/
```
2. Go to - https://example.org/

### Expected Behavior

Content should be modified to:
```
Example, Domain
```

### Actual Behavior

Content is modified to:
```
Example\, Domain
```

### Screenshots

Screenshot extension Firefox


### Additional Information

According to documentation, a comma `,` should be escaped in `$replace` rules and if it's not escaped then rule is not applied.
The problem is that `\` is added to the content but should not be and in the app it is not.

Screenshot app for Windows


https://adguard.com/kb/general/ad-filtering/create-own-filters/#replace-modifier
>In the `$replace` value, two characters must be escaped: comma `,` and dollar sign `$`. Use backslash `\` for it. For example, an escaped comma looks like this: `\,`.