Add 'details' to drawer finding object

What does this MR do and why?

According to this task, this MR is one of the development stages.

In this MR we add 'details' object to the drawer finding object and in the next MR we will use it.

References

Please include cross links to any resources that are relevant to this MR This will give reviewers and future readers helpful context to give an efficient review of the changes introduced.

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.

Before	After

How to set up and validate locally

1. Upload a GitLab Ultimate license
2. Create an empty project
3. Go to your locally project and edit with web IDE
4. Create a new file called: gl-sast-report.json and copy the content from here: gl-sast-report.json
5. Create a new file .gitlab-ci.yml and pasted this content: gitlab-ci.yml
6. Create a new folder called app and a new file inside called app.py and pasted this content: app.py
7. Create a new MR
8. Go into 'Changes' in your MR and you will see the detected vulnerability using shapes next to the specific rows.
9. Go to findings_drawer component add console.log, verify you see 'details' array.

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

Related to #493263