Log Message:
kwindowsystem: update to 5.108.0

5.99
  Port QtWinExtra uses for Qt 6
  Remove QWindow::isExposed() check in activateWindow()
5.101
  Deprecate KWindowSystem::demandAttention
  Deprecate KWindowSystem::setIcons
  Move X11-specific KWindowSystem functions to new KX11Extras class
  xcb/kwindoweffects: Fix stripes when dpr is not an integer
  Deprecate KWindowSystem::setUserTime
  Deprecate KWindowSystem::setBlockingCompositing
  Deprecate KWindowSystem::icccmCompliantMappingState
  Deprecate KWindowSystem::lowerWindow
  Deprecate KWindowSystem::constrainViewportRelativePosition
5.102
  Merge two KWINDOWSYSTEM_HAVE_X11 sections into one
  Fix KStartupInfo::appStarted()
  Deprecate KStartupInfo::startupId()
  Deprecate KStartupInfo::silenceStartup()
  KWindowSystemPluginWrapper doesn't need a virtual dtor
  Make KX11Extras::icon behave like KWindowSytem::icon
5.104  Remove extra semicolon
  Deprecated KWindowSystem::allowExternalProcessWindowActivation
  [kstartupinfo] Deprecate setWindowStartupId
  [kstartupinfo] Deprecate KStartupInfo::currentStartupIdEnv
  [kstartupinfo] Fix API docs for currentStartupIdEnv