Fix logo aliasing

CURA-6044

plugins/VersionUpgrade/VersionUpgrade32to33/__init__.py

@@ -47,7 +47,7 @@ def getMetaData() -> Dict[str, Any]:
             },
             "user": {
                 "get_version": upgrade.getCfgVersion,
-                "location": {"./user"}
+                "location": {"./user", "./materials/*"}
             },
             "variant": {
                 "get_version": upgrade.getCfgVersion,

resources/qml/MainWindow/MainWindowHeader.qml

@@ -30,7 +30,8 @@ Item
         width: UM.Theme.getSize("logo").width
         height: UM.Theme.getSize("logo").height
 
-        mipmap: true
+        sourceSize.width: width
+        sourceSize.height: height
     }
 
     Row