add: add design effects qml components

src/backend/importdummy.qml

@@ -23,6 +23,7 @@ import QtQuick.Studio.EventSystem
 import QtQuick.Studio.LogicHelper
 import QtQuick.Studio.MultiText
 import QtQuick.Studio.Utils
+import QtQuick.Studio.DesignEffects
 
 import QtQuickUltralite.Extras
 import QtQuickUltralite.Layers

src/ui/src/import_qml_components_plugins.h

@@ -15,5 +15,6 @@ Q_IMPORT_QML_PLUGIN(QtQuick_Studio_LogicHelperPlugin)
 Q_IMPORT_QML_PLUGIN(QtQuick_Studio_MultiTextPlugin)
 Q_IMPORT_QML_PLUGIN(QtQuick_Studio_EventSimulatorPlugin)
 Q_IMPORT_QML_PLUGIN(QtQuick_Studio_EventSystemPlugin)
+Q_IMPORT_QML_PLUGIN(QtQuick_Studio_EffectsPlugin)
 
 #endif