Clone vulnerability filters and spec to new file

What does this MR do and why?

This MR clones ee/app/assets/javascripts/security_dashboard/components/shared/filters/filters_layout.vue to ee/app/assets/javascripts/security_dashboard/components/shared/vulnerability_report/vulnerability_filters.vue. It's identical to filters_layout.vue aside from updating the import paths.

This is setup work for a 2nd MR so that the diff makes sense instead of just all new lines. The component needs to be cloned because the new functionality has significant changes, and it would be difficult to make both versions work in the same component.

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 #338790 (closed)