Adjusted edit button spacing

frontend/src/metabase/reference/Reference.css

@@ -22,7 +22,7 @@
 }
 
 :local(.saveButton) {
-    composes: mx1 from "style";
+    composes: mr1 from "style";
     composes: subheaderButton;
 }
 
@@ -32,6 +32,7 @@
 }
 
 :local(.editButton) {
+    composes: p0 mx1 from "style";
     color: var(--primary-button-bg-color);
 }