Fix login e2e test

[zignis]

Changes

• Selector typo fix

Example checklist

• [x] I've followed the Contribution guidelines.
• [x] I've verified that all added tests pass by running npm test.
• [x] I've included only the necessary minimum setup to showcase the example.
• [x] I've added a README.md file to the root directory of my example.

[kettanaito]

Thanks for addressing this one, @zignis. I've just updated the entire examples set and this issue doesn't exist there anymore. I will close this one.