Fix icon visibility issue in tree component (#2469)

Author: praveen-murali-ind

src/components/Tree/SwitcherIcon.jsx

@@ -3,6 +3,10 @@ import React from "react";
 import { Down, Right } from "neetoicons";
 
 const SwitcherIcon = ({ expanded }) =>
-  expanded ? <Down size={16} /> : <Right size={16} />;
+  expanded ? (
+    <Down className="neeto-ui-relative" size={16} />
+  ) : (
+    <Right className="neeto-ui-relative" size={16} />
+  );
 
 export default SwitcherIcon;