Tweak Setting Category header size

resources/themes/cura/theme.json

@@ -33,7 +33,7 @@
             "family": "Proxima Nova Rg"
         },
         "setting_category": {
-            "size": 1.0,
+            "size": 1.15,
             "family": "Proxima Nova Rg"
         },
         "action_button": {