[Android] convertFileSrc does not correctly convert sdcard paths.

After choose a file this nativePath is returned:

```file:///sdcard/Music/Sinéad O'Connor/Sean Nos Jua (2002)/05 - Óró Sé Do Bheatha 'Bhaile.flac```

parsing it with `convertFileSrc` returns:
```https://localhost/_app_file_/sdcard/Music/Sinéad O'Connor/Sean Nos Jua (2002)/05 - Óró Sé Do Bheatha 'Bhaile.flac""```

which can not be loaded by the webview.
Complete file info:
```
{
"extension":".flac","name":"05 - Óró Sé Do Bheatha 'Bhaile",
"nativePath":"file:///sdcard/Music/Sinéad O'Connor/Sean Nos Jua (2002)/05 - Óró Sé Do Bheatha 'Bhaile.flac",
"uri":"content://com.android.externalstorage.documents/document/326E-6BB3%3AMusic%2FSin%C3%A9ad%20O'Connor%2FSean%20Nos%20Jua%20(2002)%2F05%20-%20%C3%93r%C3%B3%20S%C3%A9%20Do%20Bheatha%20'Bhaile.flac",
"ionicPath":"https://localhost/_app_file_/sdcard/Music/Sinéad O'Connor/Sean Nos Jua (2002)/05 - Óró Sé Do Bheatha 'Bhaile.flac"
}
```
Selecting the same file but from the "Music" quick access works as expected.

Also converting the uri instead of the nativePath works as expected but it fails after the app restarts.