engineexplorer: Fix kf.i18n warning

kf.i18n: "0 instead of 3 arguments to message {%1 service for %2 Da...} supplied before conversion."

engineexplorer/serviceviewer.ui

@@ -90,7 +90,7 @@
    <item row="0" column="0" rowspan="2" colspan="5">
     <widget class="QLabel" name="m_title">
      <property name="text">
-      <string comment="KDE::DoNotExtract">%1 service for %2 DataEngine source %3</string>
+      <string comment="KDE::DoNotExtract">Engine; Source; Service</string>
      </property>
     </widget>
    </item>