Adjust padding for on-demand scans sidebar

What does this MR do and why?

Describe in detail what your merge request does and why.

This MR resolves #383582 (closed)

Follow-up of 102290

After @gitlab/ui MR with adjusted padding was merged,

dast_profiles_sidebar.vue styling requires minor modification for following files

dast_profile_summary_card.vue base_dast_profile_form.vue

Screenshots or screen recordings

before	after

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

1. Go to -/on_demand_scans/new
2. Change or select scanner|site profile (list of profiles from screenshot)
3. Create new profile, you will see the form from scrennshot

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #383582 (closed)