Unable to detect Apps on M1 and M2 Macs

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Description

Essentials doesn't properly detect apps on the MacOS, mistaking them for Tablets

Steps to Reproduce

1. Install on M1 or M2
2. Read device Idiom

Expected Behavior

Should report Desktop

Actual Behavior

Reports Tablet

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        switch (UIDevice.CurrentDevice.UserInterfaceIdiom)
        {
            case UIUserInterfaceIdiom.Pad:
                return DeviceIdiom.Tablet;
            case UIUserInterfaceIdiom.Phone:
                return DeviceIdiom.Phone;
            case UIUserInterfaceIdiom.TV:
                return DeviceIdiom.TV;
            case UIUserInterfaceIdiom.CarPlay:
            case UIUserInterfaceIdiom.Unspecified:
            default:
                return DeviceIdiom.Unknown;
        }

Add
case UIUserInterfaceIdiom.Mac:
return DeviceIdiom.Desktop;

To this code section

Essentials/Xamarin.Essentials/DeviceInfo/DeviceInfo.ios.tvos.watchos.cs

Line 51 in 25ceeea

case UIUserInterfaceIdiom.Pad:

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Please fix this in Maui too

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If additional helper routines are needed, these should assist the dev.

`//A Boolean value that indicates whether the process is an iPhone or iPad app running on a Mac.

• (BOOL) isIosAppOnMac {
  if (@available(iOS 14.0, *)) {
  NSProcessInfo *const processInfo = [[NSProcessInfo alloc] init];
  return processInfo.iOSAppOnMac;
  } else {
  return false;
  }
  }
  //A Boolean value that indicates whether the process originated as an iOS app and runs on macOS.
  //This is for if specifically making the app use AppKit APIs
  //https://developer.apple.com/documentation/uikit/mac_catalyst
• (BOOL) isCatalystApp {
  if (@available(iOS 14.0, *)) {
  NSProcessInfo *const processInfo = [[NSProcessInfo alloc] init];
  return processInfo.macCatalystApp;
  } else {
  return false;
  }
  }`