[PATCH v2 0/4] MR11543: Fix repaints and focus problems on controls on property manager in SolidWorks (bug #27403)

[denis bonnenfant (＠denis.bonnenfant)]

This patches serie fixes the bug 27403 in SolidWorks. It has been tested with different graphic cards, and with many other applications without showing regressions. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=27403

I tried to separate it in small patches  individually tested.

This is my first commit,  so i will kindly  welcome any advices !

--
  v2: win32u: Don't disable cache DCs on release after EndPaint.
      winex11: Suppress spurious foreground changes from rapid back-to-back SetActiveWindow calls.
      winex11: Don't send WM_CANCELMODE for intra-process focus changes.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/11543