fix axis title

Author: schaumb

test/e2e/tests/config_tests.json

@@ -41,7 +41,7 @@
 			"refs": ["2ac83c5"]
 		},
 		"dimension_axis_title": {
-			"refs": ["33278a6"]
+			"refs": ["0f4b203"]
 		},
 		"dimension_axis_density": {
 			"refs": ["0de86a3"]