Fix condition for making themes configurable
KPluginMetaData::findPlugins only returns valid json metdata, the previous check was accidentally kept for the condition that the plugin provides a theme engine.
BUG: 442978 FIXED-IN: master
KPluginMetaData::findPlugins only returns valid json metdata, the previous check was accidentally kept for the condition that the plugin provides a theme engine.
BUG: 442978 FIXED-IN: master