Floating Panel height can be set larger than displayed height

[mhdostal]

It is possible in the drag code to have the height of the floating panel be larger than the displayed height. This results in a delay when dragging up (making the floating panel smaller) until the calculated height is <= the displayed height.

See the comment here.

Code:

    var drag: some Gesture {
        DragGesture(minimumDistance: 0)
            .onChanged { value in
                handleColor = .activeHandleColor
                // Note:  There is a bug here where `height` can be set
                // larger than the displayed height.  This occurs by continuing
                // to drag down on the handle after the panel reaches it's max
                // height.  When that happens subsequent "drag up" operations
                // don't cause the panel to shrink immediately, but will
                // ultimately snap to the correct height.
                height = max(.minHeight, (height ?? 0) + value.translation.height)
            }
            .onEnded { _ in
                handleColor = .defaultHandleColor
            }
    }

[dfeinzimer]

Resolved via #74