test: refactor to use user event

Signed-off-by: Adam Setch <adam.setch@outlook.com>

Author: setchy

src/renderer/utils/icons.test.ts

@@ -6,6 +6,7 @@ import {
   MarkGithubIcon,
   OrganizationIcon,
 } from '@primer/octicons-react';
+
 import { IconColor } from '../types';
 import type {
   GitifyPullRequestReview,