fix: Update misleading description header

[danbfield]

This PR resolves a misleading user experience regarding the job description. The "Description" header was rendering even if job.description did not exist (e.g. ""), which gave the impression that the target host(s) information was the description, which it isn't.

This PR does a couple of things;

• Moves the "Description" into the job.description exists logic
• Adds a test to assert this
• Bumps Eslint & Vitest versions, as this was the first test using DOM assertions

Hopefully this is clear from the video!

388464178-a97e4620-b104-45e2-b40b-c412a9ba65fc.mov