[Feature Request] Customizable Item Width Using Flex Parameter

[dhiyaaulauliyaa]

Currently, the package uses a same spacing between each item in the datetime picker. This can become problematic when displaying longer date texts, especially when showing weekdays/months with text representation. As a result, the content may appear cramped and untidy:

To resolve the issue, one of the solution is to have the ability to customize the width of each child item individually. This customization could be achieved using a flex parameter, allowing for a more tidy display of the datetime picker: