Fix MSVC build
MSVC doesn't like that two static variable in two different anonymous namespace have the same name, so rename one of them.
See the following compile error:
src/ksieveui/autocreatescripts/autocreatescriptdialog.cpp(23): error C2374: 'anonymous-namespace'::myAutoCreateScriptDialogGroupName': redefinition; multiple initialization src/ksieveui/autocreatescripts/sieveeditorgraphicalmodewidget.cpp(26): note: see declaration of '
anonymous-namespace'::myAutoCreateScriptDialogGroupName'