MaterialMenuButton - on click application got crash in both Android and iOS

## 🐛 Bug Report

### Expected behavior
- It should work properly and show a popup with menu items.

### Reproduction steps
- Add MaterialMenuButton on the page and when clicking on the button it crashes the app.

### MainPage.xaml
```c#

```

### MainPageViewModel.cs
```c#
public MainPageViewModel()
{
ObservableCollection actions = new ObservableCollection();
actions.Add(new MaterialMenuItem() { Text = "Details" });
actions.Add(new MaterialMenuItem() { Text = "Edit" });
actions.Add(new MaterialMenuItem() { Text = "Upload Document" });
actions.Add(new MaterialMenuItem() { Text = "Add Project" });
Actions = new ObservableCollection(actions);
}

private ObservableCollection _actions { get; set; }
public ObservableCollection Actions
{
get => _actions;
set { _actions = value; OnPropertyChanged(nameof(Actions)); }
}
```

### Configuration
- Visual Studio for Mac 2022 Version 17.0.1 (build 72)

**Version:** 1.x
- XF.Material - 1.8.0

**Platform:**
- [x] :iphone: iOS
- [x] :robot: Android
- [ ] :checkered_flag: WPF
- [ ] :earth_americas: UWP
- [ ] :apple: MacOS
- [ ] :tv: tvOS
- [x] :monkey: Xamarin.Forms

> ### Exception Message: Cannot show menu, property Choices is null or has no items
## Stack Trace
```
at XF.Material.Forms.UI.MaterialMenuButton.OnViewTouch (System.Double x, System.Double y) [0x0002c] in Z:\Documents\OpenSource\XF-Material-Library\XF.Material\UI\MaterialMenuButton.cs:131
at XF.Material.iOS.Renderers.MaterialMenuRenderer.OnClick () [0x0001b] in Z:\Documents\OpenSource\XF-Material-Library\XF.Material\Platforms\Ios\Renderers\MaterialMenuRenderer.cs:26
at Xamarin.Forms.Command+<>c__DisplayClass4_0.<.ctor>b__0 (System.Object o) [0x00000] in D:\a\1\s\Xamarin.Forms.Core\Command.cs:74
at Xamarin.Forms.Command.Execute (System.Object parameter) [0x00000] in D:\a\1\s\Xamarin.Forms.Core\Command.cs:112
at XF.Material.Forms.UI.MaterialIconButton.OnButtonClicked (System.Boolean handled) [0x00017] in Z:\Documents\OpenSource\XF-Material-Library\XF.Material\UI\MaterialIconButton.xaml.cs:145
at XF.Material.Forms.UI.MaterialMenuButton.OnButtonClicked (System.Boolean handled) [0x00000] in Z:\Documents\OpenSource\XF-Material-Library\XF.Material\UI\MaterialMenuButton.cs:120
at XF.Material.Forms.UI.MaterialIconButton.<.ctor>b__13_0 () [0x00000] in Z:\Documents\OpenSource\XF-Material-Library\XF.Material\UI\MaterialIconButton.xaml.cs:47
at Xamarin.Forms.Command+<>c__DisplayClass4_0.<.ctor>b__0 (System.Object o) [0x00000] in D:\a\1\s\Xamarin.Forms.Core\Command.cs:74
at Xamarin.Forms.Command.Execute (System.Object parameter) [0x00000] in D:\a\1\s\Xamarin.Forms.Core\Command.cs:112
at Xamarin.Forms.ButtonElement.ElementClicked (Xamarin.Forms.VisualElement visualElement, Xamarin.Forms.Internals.IButtonElement ButtonElementManager) [0x00008] in D:\a\1\s\Xamarin.Forms.Core\ButtonElement.cs:60
at Xamarin.Forms.Button.SendClicked () [0x00000] in D:\a\1\s\Xamarin.Forms.Core\Button.cs:173
at Xamarin.Forms.Platform.iOS.ButtonElementManager.OnButtonTouchUpInside (Xamarin.Forms.IButtonController element) [0x00009] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\ButtonElementManager.cs:86
at Xamarin.Forms.Platform.iOS.ButtonRenderer.OnButtonTouchUpInside (System.Object sender, System.EventArgs eventArgs) [0x00000] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\ButtonRenderer.cs:189
at UIKit.UIControlEventProxy.Activated () [0x00004] in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIControl.cs:38
--- End of stack trace from previous location where exception was thrown ---

at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x00013] in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:75
at solarcrm.Application.Main (System.String[] args) [0x0001b] in /Users/divyeshbhatt/Documents/sourcetree/APS/src/solarcrm.Mobile.iOS/Main.cs:20
```