Do not block on setShortcut
We try to make sure the component is cached but there's little reason to have it block there (twice per action).
Would fix this blocked state here
#0 0x00007f5c297e58ca in __futex_abstimed_wait_common64 () at /usr/lib/libpthread.so.0
#1 0x00007f5c297df270 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#2 0x00007f5c29a69b7b in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., deadline=..., this=0x556f9b2a1cd0)
at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/thread/qwaitcondition_unix.cpp:146
#3 QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x556f9b210200, mutex=mutex@entry=0x556f9b2101f8, deadline=...)
at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/thread/qwaitcondition_unix.cpp:225
#4 0x00007f5c2d27cf42 in QDBusPendingCallPrivate::waitForFinished() (this=0x556f9b2101c0)
at ../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/kernel/qdeadlinetimer.h:68
#5 0x00007f5c2b7df54f in QDBusReply<QDBusObjectPath>::operator=(QDBusPendingCall const&) (this=0x7ffd14be28f0, pcall=...) at /home/apol/devel/kde5/include/QtDBus/qdbusreply.h:83
#6 0x00007f5c2b7d59b5 in QDBusReply<QDBusObjectPath>::QDBusReply(QDBusPendingReply<QDBusObjectPath, void, void, void, void, void, void, void> const&) (this=0x7ffd14be28f0, reply=...)
at /home/apol/devel/kde5/include/QtDBus/qdbusreply.h:88
#7 0x00007f5c2b7d04d2 in KGlobalAccelPrivate::getComponent(QString const&, bool) (this=0x556f9b1aef40, componentUnique=..., remember=true)
at /home/apol/devel/frameworks/kglobalaccel/src/kglobalaccel.cpp:40
#8 0x00007f5c2b7d26f1 in KGlobalAccelPrivate::updateGlobalShortcut(QAction*, QFlags<KGlobalAccelPrivate::ShortcutType>, KGlobalAccel::GlobalShortcutLoading) (this=0x556f9b1aef40, action=
0x556f9b20e230, actionFlags=..., globalFlags=KGlobalAccel::Autoloading) at /home/apol/devel/frameworks/kglobalaccel/src/kglobalaccel.cpp:321
#9 0x00007f5c2b7d4202 in KGlobalAccel::setShortcut(QAction*, QList<QKeySequence> const&, KGlobalAccel::GlobalShortcutLoading)
(this=0x7f5c2b7fb608 <(anonymous namespace)::Q_QGS_s_instance::innerFunction()::holder>, action=0x556f9b20e230, shortcut=..., loadFlag=KGlobalAccel::Autoloading)
at /home/apol/devel/frameworks/kglobalaccel/src/kglobalaccel.cpp:643
#10 0x00007f5c2ce67604 in KWin::Workspace::initShortcut<KWin::Workspace, std::_Bind<void (KWin::Workspace::*(KWin::Workspace*, KWin::Workspace::Direction))(KWin::Workspace::Direction)> >(QString const&, QString const&, QKeySequence const&, KWin::Workspace*, std::_Bind<void (KWin::Workspace::*(KWin::Workspace*, KWin::Workspace::Direction))(KWin::Workspace::Direction)>, QVariant const&) (this=0x556f9b08ca40, actionName=..., description=..., shortcut=..., receiver=0x556f9b08ca40, slot=..., data=...) at /home/apol/devel/frameworks/kwin/src/useractions.cpp:963
#11 0x00007f5c2ce61f51 in KWin::Workspace::initShortcut<std::_Bind<void (KWin::Workspace::*(KWin::Workspace*, KWin::Workspace::Direction))(KWin::Workspace::Direction)> >(QString const&, QString const&, QKeySequence const&, std::_Bind<void (KWin::Workspace::*(KWin::Workspace*, KWin::Workspace::Direction))(KWin::Workspace::Direction)>, QVariant const&)
(this=0x556f9b08ca40, actionName=..., description=..., shortcut=..., slot=..., data=...) at /home/apol/devel/frameworks/kwin/src/useractions.cpp:949
#12 0x00007f5c2ce581f1 in KWin::Workspace::initShortcuts() (this=0x556f9b08ca40) at /home/apol/devel/frameworks/kwin/src/useractions.cpp:1064
#13 0x00007f5c2ce8f7f8 in KWin::Workspace::Workspace() (this=0x556f9b08ca40) at /home/apol/devel/frameworks/kwin/src/workspace.cpp:202
#14 0x00007f5c2cd69f10 in KWin::Application::createWorkspace() (this=0x7ffd14be5ad8) at /home/apol/devel/frameworks/kwin/src/main.cpp:280
#15 0x0000556f9a00926d in KWin::ApplicationWayland::continueStartupWithScreens() (this=0x7ffd14be5ad8) at /home/apol/devel/frameworks/kwin/src/main_wayland.cpp:189
#16 0x0000556f9a009154 in KWin::ApplicationWayland::continueStartupWithScene() (this=0x7ffd14be5ad8) at /home/apol/devel/frameworks/kwin/src/main_wayland.cpp:178
#17 0x0000556f9a011058 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (KWin::ApplicationWayland::*)()>::call(void (KWin::ApplicationWayland::*)(), KWin::ApplicationWayland*, void**)
(f=(void (KWin::ApplicationWayland::*)(KWin::ApplicationWayland * const)) 0x556f9a0090a0 <KWin::ApplicationWayland::continueStartupWithScene()>, o=0x7ffd14be5ad8, arg=0x7ffd14be4a50)
at /home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:152