Describe the bug

Currently the imgui mouse pos is updated whenever the widget window/window is active. But in the case of widgets windows it also makes sense to check the focus. Otherwise a mouse over the area can trigger hovering effects in imgui when the user is interacting with other QT widgets.

//... ImGuiRenderer.cpp
if (m_window->isActive()) // + also check focus in case of widget
{
    const QPoint pos = m_window->mapFromGlobal(QCursor::pos());
    io.MousePos = ImVec2(pos.x(), pos.y());
}
else
{
    io.MousePos = ImVec2(-1,-1);
}

To Reproduce
Have any widget like a combo box that expands over the widgets area when interacted.

Expected behavior
Imgui mouse pos should not be updated when the widget has no focus other widget has focus to avoid hovering triggers.

Desktop (please complete the following information):

• OS: Win10. Note that I am using imgui 1.89.2.WIP with docking plus some fixes for the keyboard, etc.