Fix reloading animation speed option

Amends 4d2c9f5d88.

Prior to 4d2c9f5d88, the Compositor used
to force the Options to reload settings when starting compositing.

Unfortunately it was overlooked that Options::animationTimeFactor() can
return an old value when the Options::animationSpeedChanged() signal is
emitted. This change addresses that.

src/options.cpp

@@ -96,6 +96,7 @@ Options::Options(QObject *parent)
     m_configWatcher = KConfigWatcher::create(m_settings->sharedConfig());
     connect(m_configWatcher.data(), &KConfigWatcher::configChanged, this, [this](const KConfigGroup &group, const QByteArrayList &names) {
         if (group.name() == QLatin1String("KDE") && names.contains(QByteArrayLiteral("AnimationDurationFactor"))) {
+            m_settings->load();
             Q_EMIT animationSpeedChanged();
         } else if (group.name() == QLatin1String("Xwayland")) {
             workspace()->reconfigure();