refactor: update button and badge styles for improved theming and consistency

src/pages/admin/AdminRoles.js

@@ -193,7 +193,7 @@ const AdminRoles = () => {
             Create and manage custom roles with specific permissions
           </p>
         </div>
-        <Button onClick={() => setShowCreateModal(true)}>
+        <Button className="btn-lavender " onClick={() => setShowCreateModal(true)}>
           <Plus className="w-4 h-4 mr-2" />
           Create Role
         </Button>