[Bug 59602] Nested `UserControl` is not properly rescaled on font change

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59602

--- Comment #3 from [e-mail] <[e-mail]> ---
Workaround good enough to handle composite/nested controls:
```
/// <remarks>
/// Works around https://bugs.winehq.org/show_bug.cgi?id=59602 by scaling
nested children
/// in case of <see cref="BoundsSpecified.Location"/>, rather than skipping:
///
https://gitlab.winehq.org/mono/mono/-/blob/main/mcs/class/System.Windows.For...
/// </remarks>
[Conditional("MONO")]
public static void ApplyMonoScaleChildrenWorkaround(Control.ControlCollection
controls, SizeF factor, BoundsSpecified specified, bool scaleChildren)
{
    if ((specified == BoundsSpecified.Location) && scaleChildren)
    {
        foreach (Control c in controls)
            c.Scale(factor);
    }
}
```
Workaround has to be applied to the top-level composite control:
```
#if (MONO)
protected override void ScaleControl(SizeF factor, BoundsSpecified specified)
{
    base.ScaleControl(factor, specified);

    SuspendLayout();
    ControlEx.ApplyMonoScaleChildrenWorkaround(Controls, factor, specified,
ScaleChildren);
    ResumeLayout();
}
#endif
```
The workaround does not work for forms, e.g. MDI child forms. For such, call
`Scale()` on all composite controls:
```
#if (MONO)
protected override void ScaleControl(SizeF factor, BoundsSpecified specified)
{
    base.ScaleControl(factor, specified);

    SuspendLayout();
    someControl.Scale(factor);
    ResumeLayout();
}
#endif
```

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