Migrate from Xamarin.Forms AutoCompleteView to .NET MAUI AutoComplete

Overall, Telerik .NET MAUI AutoComplete control preserves the same API as Xamarin.Forms AutoCompleteView with a few changes and improvements listed in the table below:

Xamarin AutoCompleteView	.NET MAUI AutoComplete
control name - AutoCompleteView	control name - AutoComplete
WatermarkText	Placeholder
WatermarkTextColor	PlaceholderColor
SuggestionItemTextColor	SuggestionItemHighlightTextColor
SuggestionItemLabel	RadHighlightLabel
ImagePath	removed
CompletionMode	AutoCompleteCompletionMode
PopupPosition	AutoCompletePopupPosition
SuggestMode	AutoCompleteSuggestMode