Add showDragHandle Parameter to Get.bottomSheet

[egortabula]

This PR introduces a new parameter, showDragHandle, to the Get.bottomSheet method. The showDragHandle parameter allows developers to easily control the visibility of a drag handle within the bottom sheet.

Changes

• Added the showDragHandle boolean parameter to the Get.bottomSheet method.
• When showDragHandle is set to true, a drag handle will be displayed at the top of the bottom sheet
• When showDragHandle is set to false, the drag handle will be hidden. By default, the drag handle is hidden to maintain backward compatibility.

Every PR must update the corresponding documentation in the code, and also the readme in english with the following changes.

Pre-launch Checklist

• I updated/added relevant documentation (doc comments with ///).
• I added new tests to check the change I am making or feature I am adding, or @jonataslaw said the PR is test-exempt.
• All existing and new tests are passing.