Add group by dropdown on adherence report

What does this MR do and why?

What

Add group by dropdown on adherence report

• Moves table to base component
• Adds group by dropdown on adherence report
• Current options are none and checks (project to be included in follow up MR)

Why

Adds grouping for the standards adherence report

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

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

Grouping

Grouping (with filters)

How to set up and validate locally

Setup Adherences

1. Visit group settings and enable "Prevent approval by author" from the 'Merge Request Approval' section.
2. This will create a couple of rows inside the project_compliance_standards_adherence table.

Visit Standard Adherence page

1. Visit a group, under Secure (new UI) or Security & Compliance (old UI) > Compliance center
2. Use the new grouping dropdown

Related to #413735 (closed)