Samsung Internet can't hide pseudo-elements

### Prerequisites

- [X] I am running the latest version
- [X] I checked the documentation and found no answer
- [X] I checked to make sure that this issue has not already been filed

### Issue Details

- **AdGuard version:**
- v.2.6.2
- **Browser:**
- Samsung Internet 11.2.1.3
- **Device model:**
- Motorola Moto G7 Power
- **Operating system and version:**
- Android 9 (PPOS29.114-134-13)

### Expected Behavior

Should hide pseudo-elements (iOS app does, Yandex with Content blocker too)

### Actual Behavior

Can't hide pseudo-elements - generate glitch on `medonet.pl`:

https://github.com/AdguardTeam/AdguardFilters/issues/55535

### Screenshots

N/A

### Additional Information

no works both syntax:

```adb
! CSS 2.1
medonet.pl##BODY:before

! CSS 3
medonet.pl##BODY::before
```

Maybe better stable demo to tests: https://output.jsbin.com/batobem/

>
> ```adb
> output.jsbin.com##q:before
> output.jsbin.com##q:after
> output.jsbin.com##.ribbon:before
> output.jsbin.com##li.done:before
> ```

>
> ```adb
> output.jsbin.com##q::before
> output.jsbin.com##q::after
> output.jsbin.com##.ribbon::before
> output.jsbin.com##li.done::before
> ```

Maybe need report this directly into Samsung as bug in "content" API, because Adblock Plus Content Blocker also does not hide.