Sticky Scroll: Rendering edge case when top line is visible

[alexdima]

• open the following file (with a class definition on the first line)
• when the scroll position is at the top of the file, it is unexpected that the widget appears
• the widget should appear as soon as the line is scrolled up by 1px, but not when the line is completely visible

class X1 { // https://www.example.com
    public foo() {
    }
}