VideoQuality enum "DefaultQuality" and "MediumQuality" have the same sizes

First of all: Thanks for your good work! This is a lighweight package to video resizing. But I notice an elementar issue.
The enum `VideoQuality.HighestQuality` and `VideoQuality.HighestQuality` seems to output the absolutely same resolution. If I try to compress a video with my iPhone 11 and check the video width after compressing, I can see the following sizes:

`VideoQuality.LowQuality` : 224 Pixels
`VideoQuality.DefaultQuality` : 568 Pixels
`VideoQuality.MediumQuality` : 568 Pixels
`VideoQuality.HighestQuality` : 1280 Pixels

Why `DefaultQuality` and `MediumQuality` have the same sizes? Is this a known bug? I understand that more than 1280 pixels is not possible here because this are apple presets, but are this the real values regarding the video width of a landscape video?

Additional information: Before each try I called `await VideoCompress.deleteAllCache();` to be sure that there is nothing in cache.

My code:

```
for (int i = 0; i < videos.length; i++) {
var path = videos[i]["videoPath"];
final MediaInfo compressedVideo = await VideoCompress.compressVideo(path,
quality: VideoQuality.HighestQuality);
print(compressedVideo.width);
}
```

Thanks in advance for your information about this!

Start with the VideoQuality enum and the VideoCompress.compressVideo entry point described in the issue, then inspect how each quality maps to the reported output width. Reproduce the four quality measurements on an iPhone 11 after clearing the cache, and verify whether DefaultQuality and MediumQuality produce distinct documented resolutions.

Written by the indexing model from the issue text.