ConsoleProcess: Make setSettings() a static member

Since it's not possible to use directly ICore::settings()
inside Utils lib, make setSettings() a static member.
This simplifies the API of other static methods.
Set the settings just once now, inside main().

Change-Id: I2bcc58d4d29b5aba4a1a21a98a9f4245b24b530f
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: hjk <hjk@qt.io>

src/app/main.cpp

@@ -33,6 +33,7 @@
 #include <qtsingleapplication.h>
 
 #include <utils/algorithm.h>
+#include <utils/consoleprocess.h>
 #include <utils/environment.h>
 #include <utils/fileutils.h>
 #include <utils/hostosinfo.h>
@@ -551,6 +552,7 @@ int main(int argc, char **argv)
                                  QSettings::SystemScope,
                                  QLatin1String(Core::Constants::IDE_SETTINGSVARIANT_STR),
                                  QLatin1String(Core::Constants::IDE_CASED_ID));
+    Utils::ConsoleProcess::setSettings(settings);
     loadFonts();
 
     if (Utils::HostOsInfo::isWindowsHost()