[New Feature] Flutter Bottom Sheets

[Rhishikesh12]

Is your feature request related to a problem? Please describe.
Yes, the problem is that the current UI Library lacks the functionality of bottom sheets.

Describe the solution you'd like
I would like to add the feature of bottom sheets to the UI Library. Bottom sheets are a UI component that can slide up from the bottom of the screen to display additional content or options. They provide a convenient way to present contextual information or actions without obstructing the main content.

Describe alternatives you've considered
One alternative solution could be using modal dialogs or pop-up menus to display additional information or options. However, bottom sheets offer a more visually appealing and user-friendly experience by providing a smooth transition and allowing the user to still see the underlying content.

Additional context
Adding bottom sheets to the UI Library will enhance the range of UI components available and provide developers with more flexibility in designing their applications.

I am interested in working on implementing this feature in the UI Library and would like to contribute to its development.

Example :