[MIRROR] fix multiple tests leaking dom into each other (#12925)

Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>

tgui/happydom.ts

@@ -1,5 +1,10 @@
+import { afterEach } from 'bun:test';
 import { GlobalRegistrator } from '@happy-dom/global-registrator';
 
 GlobalRegistrator.register();
 
-import './packages/tgui/__mocks__/setup.ts';
+const { cleanup } = await import('@testing-library/react');
+
+afterEach(cleanup);
+
+import './packages/tgui/__mocks__/setup';

tgui/tsconfig.json

@@ -28,5 +28,5 @@
 		"strictNullChecks": true,
 		"target": "ESNext"
 	},
-	"include": ["./*.d.ts", "./packages"]
+	"include": ["./*.d.ts", "./packages", "happydom.ts"]
 }