[tracking] Switch icons to sensible names

src/modules/tracking/page_trackingstep.qrc

@@ -1,9 +1,9 @@
 <RCC>
   <qresource prefix="tracking">
-    <file>none.png</file>
+    <file>level-none.png</file>
-    <file>machine.png</file>
+    <file>level-install.png</file>
+    <file>level-machine.png</file>
+    <file>level-user.png</file>
     <file>../../../data/images/information.svgz</file>
-    <file>binoculars.png</file>
-    <file>phone.png</file>
   </qresource>
 </RCC>

src/modules/tracking/page_trackingstep.ui

@@ -59,7 +59,7 @@
          <string/>
         </property>
         <property name="pixmap">
-         <pixmap resource="page_trackingstep.qrc">:/tracking/none.png</pixmap>
+         <pixmap resource="page_trackingstep.qrc">:/tracking/level-none.png</pixmap>
         </property>
        </widget>
       </item>
@@ -110,7 +110,7 @@
          <string/>
         </property>
         <property name="pixmap">
-         <pixmap resource="page_trackingstep.qrc">:/tracking/phone.png</pixmap>
+         <pixmap resource="page_trackingstep.qrc">:/tracking/level-install.png</pixmap>
         </property>
        </widget>
       </item>
@@ -172,7 +172,7 @@
          <string/>
         </property>
         <property name="pixmap">
-         <pixmap resource="page_trackingstep.qrc">:/tracking/machine.png</pixmap>
+         <pixmap resource="page_trackingstep.qrc">:/tracking/level-machine.png</pixmap>
         </property>
        </widget>
       </item>
@@ -234,7 +234,7 @@
          <string/>
         </property>
         <property name="pixmap">
-         <pixmap resource="page_trackingstep.qrc">:/tracking/binoculars.png</pixmap>
+         <pixmap resource="page_trackingstep.qrc">:/tracking/level-user.png</pixmap>
         </property>
        </widget>
       </item>