Add css unit to styles.spacing.padding value to regain default paddings on menu overlay (#8665)

Author: iamtakashi

strand/theme.json

@@ -691,10 +691,10 @@
 		"spacing": {
 			"blockGap": "1.5rem",
 			"padding": {
-				"bottom": "0",
-				"left": "0",
-				"right": "0",
-				"top": "0"
+				"bottom": "0px",
+				"left": "0px",
+				"right": "0px",
+				"top": "0px"
 			}
 		},
 		"typography": {
@@ -715,4 +715,4 @@
 	],
 	"version": 2,
 	"$schema": "https://schemas.wp.org/trunk/theme.json"
-}
+}