Drag problem

[littlehj]

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New Issue Checklist

• [x] Use the latest version of CalendarKit
• [x] I've read the Contribution Guidelines
• [x] I've searched for existing GitHub issues

Issue Description

Dragging the selected event upward as shown in the attached image causes it to be drawn beyond the current scroll view.

[richardtop]

There is a problem that when the selected event is dragged upward like the attached picture, it is drawn beyond the current scroll view.

[richardtop]

A confirmed bug in the library, thank you for reporting.

[littlehj]

Thanks!