enable option is missing in DatePicker API and default values

[nelito987]

Bug report

Although in some parts of the DatePicker implementation, it relies on options.enable value, the option does not have a default value set. Thus, in many cases, it remains undefined.

Expected/desired behavior

Add a default value for enable in the source code and describe the configuration option in the API.

Environment

• Kendo UI version: 2025.2.520
• Browser: [all ]