Sign in with LDAP button doesn't have proper margin

Summary

Sign in button is touching the bottom border without proper margins when LDAP is enabled. Replicated this on a test instance with version 15.1

Steps to reproduce

1. Enable LDAP on GitLab 15.1 and attempt to log in with LDAP
2. Notice that the sign in button doesn't have proper margin.

Example Project

N/A

What is the current bug behavior?

What is the expected correct behavior?

Relevant logs and/or screenshots

Output of checks

Results of GitLab environment info

Expand for output related to GitLab environment info

(For installations with omnibus-gitlab package run and paste the output of:
`sudo gitlab-rake gitlab:env:info`)

(For installations from source run and paste the output of:
`sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production`)

Results of GitLab application Check

Expand for output related to the GitLab application check

(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:check SANITIZE=true)
(For installations from source run and paste the output of:
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)
(we will only investigate if the tests are passing)

Possible fixes

Seems like adding gl-pb-5 here fixes it.

Customer ticket

• https://gitlab.zendesk.com/agent/tickets/302079