Fix DisplayAlert to properly pass the cancel parameter to DisplayAlertAsync#31474

jfversluis merged 1 commit intodotnet:net10.0dotnet/maui:net10.0from

thisisthekap:br_31473_fix_ArgumentNullException_in_Page-DisplayAlertthisisthekap/maui:br_31473_fix_ArgumentNullException_in_Page-DisplayAlertCopy head branch name to clipboard