Create training in vulnerability details page

Add training section to the vulnerability details page

Mock 1 Mock 2 (page unified schema)
B1-DET_page-security_training B2-DET_page-unified_schema-security_training

When we are querying we'll use the skeleton loading pattern

And if no training is found, here's how it should look like

Implementation Plan

Please see spike issue for detail on the vendor API usage > https://gitlab.com/gitlab-org/gitlab/-/issues/346069

Edited by Samantha Ming