Update button spacing on blue variation

course/styles/dark.json

@@ -255,6 +255,9 @@
 				"typography": {
 					"fontWeight": "500",
 					"letterSpacing": "-0.01em"
+				},
+				"spacing": {
+					"padding": "0.9em 1.6em"
 				}
 			},
 			"heading": {