Allow wheel scroll to work for page, even when mouse is over panel toggle bar...
When "show panel toggle" is enabled, there is a clickable panel toggle bar placed on the left edge of the screen which is used to toggle the panel, and it is very handy. But the problem with it is that when we move the mouse cursor over it, we can't wheel scroll the page anymore unless we move the mouse cursor off it. This is an annoyance and the problem often happens because we have a habit of often parking the mouse cursor to the left edge of the screen when using certain websites, such as in YouTube comments section, etc. Please fix by allowing wheel scroll to still work for the page, even when the mouse cursor is over the panel toggle bar.
[bug reported VB-48576]