The Rear camera is not working on devices with multiple cameras

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[x] bug report
[ ] feature request
[ ] support request => Please do not submit support requests here, use one of these channels: https://forum.ionicframework.com/ or https://stencil-worldwide.slack.com

**Current behavior:**
The Rear camera is not working on devices with multiple cameras

**Expected behavior:**
It should work on S20+ and Huawey P30 Lite -> MAR-LX3A

**Steps to reproduce:**
Use pwa-elements and capacitor core on Galaxy S20+ them try to rotate the camera to the front one.
This will happen:

**Related code:**

```
import {
Camera,
CameraResultType,
CameraSource,
CameraDirection,
} from '@capacitor/core';

const image = await Camera.getPhoto({
resultType: CameraResultType.DataUrl,
source: CameraSource.Camera,
direction: CameraDirection.Rear,
quality: 100,
});
const imageDataUrl = image.dataUrl;
```