Building the "custom-login" sample results with message about app vulnerabilities

[adriatic]

When running npm install command for the custom-login sample, I get the following

added 1411 packages from 1019 contributors and audited 10131 packages in 31.202s
found 7 vulnerabilities (1 low, 1 moderate, 4 high, 1 critical)
  run `npm audit fix` to fix them, or `npm audit` for details

Seeing the warning about 4 high vulnerabilities might scare new users of Okta (and those are the users that would play with this sample 😏 )