Make manufacturer and extruder labels lighter

The proper colour would've been 'detail' but that seems to not be used much at all, and it's too light. In other places, 'inactive' is used in this place more often.

Contributes to issue CURA-5876.

resources/qml/Menus/ConfigurationMenu/ConfigurationMenu.qml

@@ -64,7 +64,7 @@ Cura.ExpandableComponent
                     text: model.material_brand
                     elide: Text.ElideRight
                     font: UM.Theme.getFont("default")
-                    color: UM.Theme.getColor("text")
+                    color: UM.Theme.getColor("text_inactive")
 
                     anchors
                     {

resources/qml/Menus/ConfigurationMenu/PrintCoreConfiguration.qml

@@ -36,7 +36,7 @@ Row
             renderType: Text.NativeRendering
             elide: Text.ElideRight
             font: UM.Theme.getFont("default")
-            color: UM.Theme.getColor("text")
+            color: UM.Theme.getColor("text_inactive")
         }
         Label
         {
@@ -52,7 +52,7 @@ Row
             renderType: Text.NativeRendering
             elide: Text.ElideRight
             font: UM.Theme.getFont("default")
-            color: UM.Theme.getColor("text")
+            color: UM.Theme.getColor("text_inactive")
         }
     }
 }