ExtendedFrameBounds is flaky for DPI unaware windows

[imawizard]

Examples for affected windows:

• GitExtensions (window=96 monitor=144 system=144)
• dirtyJOE (window=96 monitor=144 system=144)

Examples for not affected windows (system DPI aware):

• WinSpy (window=144 monitor=144 system=144)
• Process Hacker (window=144 monitor=144 system=144)

Returned values are not reliable:

ExtendedFrameBounds(0x00020a6c) are {bottom = 11, left = 11, right = 11, top = 0}
ExtendenFrameBounds(0x00020a6c) are {bottom = 11, left = 12, right = 10, top = 0}