Update Introduction Page

Author: DinkoK

HelpMigration - Shortcut.lnk

@@ -1888,6 +1888,7 @@ intro_columns:
       "CheckedDropDownList": "winforms/dropdown-listcontrol-and-checkeddropdownlist/checkeddropdownlist"
       "Clock": "winforms/clock"
       "ColorBox": "winforms/editors/colorbox"
+      "DateOnlyPicker": "editors-dateonlypicker-overview"
       "DateTimePicker": "winforms/editors/datetimepicker"
       "DomainUpDown": "winforms/editors/domainupdown/overview"
       "DropDownList": "winforms/dropdown-listcontrol-and-checkeddropdownlist/dropdownlist"
@@ -1898,6 +1899,7 @@ intro_columns:
       "SpinEditor": "winforms/editors/spineditor"
       "Spreadsheet": "radspreadsheet-overview"
       "TextBox": "winforms/editors/textbox"
+      "TimeOnlyPicker": "editors-timeonlypicker-overview"
       "TimePicker": "winforms/editors/timepicker"
       "TimeSpanPicker": "radtimespanpicker-overview"
       "SyntaxEditor": "syntax-editor-overview"