allow zoom past monitor size

[adipose]

This solves one or more of the zoom issues. Namely, it will zoom past the monitor size by changing back to bottom right growth once it is out of monitor. I chose that option somewhat arbitrarily, but if the window has already zoomed to its max size within the monitor, it keeps the upper left on that monitor, which is helpful for accessing the menus etc.

[adipose]

I also added a function to standardize the working rect code. I observe that there are multiple code blocks throughout mainfrm.cpp with the same or similar purpose, and they are not all written the same:

        CRect areaRect;
        CMonitors::GetNearestMonitor(this).GetWorkAreaRect(areaRect);
        const CRect invisibleBorderSize = GetInvisibleBorderSize();
        areaRect.InflateRect(invisibleBorderSize);

    if (bZoomed) {
        CMonitors::GetNearestMonitor(this).GetWorkAreaRect(windowRect);
    } else {
        VERIFY(AdjustWindowRectEx(windowRect, GetWindowStyle(m_hWnd), dwMenuFlags == AFX_MBV_KEEPVISIBLE, GetWindowExStyle(m_hWnd)));
    }

        CRect workRect;
        CMonitors::GetNearestMonitor(this).GetWorkAreaRect(workRect);

        if (workRect.Width() && workRect.Height()) {
            // account for invisible borders on Windows 10 by allowing
            // the window to go out of screen a bit
            if (IsWindows10OrGreater()) {
                workRect.InflateRect(GetInvisibleBorderSize());
            }

Here's the one I adopted, but only because it was in a function affected by this patch.

    MONITORINFO mi = { sizeof(mi) };
    if (GetMonitorInfo(MonitorFromWindow(m_hWnd, MONITOR_DEFAULTTONEAREST), &mi)) {
        work = mi.rcWork;
        // account for invisible borders on Windows 10 by allowing
        // the window to go out of screen a bit
        if (IsWindows10OrGreater()) {
            work.InflateRect(GetInvisibleBorderSize());
        }

[Sp3EdeR]

Looks good to me! This would close the first 2 points of the #2740 issue, in my opinion.