Don't error on close directly

Signed-off-by: Sebastian Malton <sebastian@malton.name>

packages/open-lens/integration/helpers/utils.ts

@@ -36,13 +36,8 @@ async function getMainWindow(app: ElectronApplication, timeout = 50_000): Promis
     app.on("window", onWindow);
     cleanup.push(() => app.off("window", onWindow));
 
-    const onClose = () => {
-      cleanup();
-      reject(new Error("App has unnexpectedly closed"));
-    };
-
-    app.on("close", onClose);
-    cleanup.push(() => app.off("close", onClose));
+    app.on("close", cleanup);
+    cleanup.push(() => app.off("close", cleanup));
 
     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
     const stdout = app.process().stdout!;