Compatibility with older Xojo versions

[markuswinter]

Thanks for the repository. You can actually run the project in older Xojo versions (to 2021R3) by adding two small extension methods as the newer methods are just the old methods having been renamed. Best put these into a module:

Public Function Contains(Extends s As String, what As String, caseSensitive As Boolean = False) As Boolean
  /// True if [s] contains [what].
  
  If caseSensitive Then
    Return s.IndexOf(0, what, ComparisonOptions.CaseSensitive) <> -1
  Else
    Return s.IndexOf(0, what, ComparisonOptions.CaseInsensitive) <> -1
  End If
  
End Function

and

Public Function SelectedRowText(Extends popup As DesktopPopupMenu) As String
  // New in 2021r3:
  // DestopPopupMenu
  // StringValue = aDesktopPopupMenu.SelectedRowValue 

  // New in 2023r3
  // Desktop: Added SelectedRowText property and deprecated SelectedRowValue for DesktopListBox and DesktopPopupMenu.
  
#If XojoVersion > 2021.03 AND XojoVersion < 2023.03 Then
  Return popup.SelectedRowValue
#EndIf
  
End Function