feat: show fixed versions for vulnerabilities

[nitodeco]

Currently its shown that there are vulnerabilities, but not which version fixes them.

Example:

A great value addition would be to show what earliest version after the affected one resolves the vulnerability.

In the case of Next.js 15.5.6, this would be 15.5.9 for the deprecation, and 16.1.5 for 0 vulns.

[Flo0806]

@nitodeco @danielroe like this?

[nitodeco]

@Flo0806 Exactly, neat!