Update theme.json (#7963)

Update the spacing settings.

bark/theme.json

@@ -191,9 +191,10 @@
 			"wideSize": "1440px"
 		},
 		"spacing": {
-			"spacingScale": {
-				"steps": 0
-			},
+			"defaultSpacingSizes": false,
+            "spacingScale": {
+                "steps": 1
+            },
 			"spacingSizes": [
 				{
 					"name": "2X-Small",