Malware page handling improvements.

[Pheotis]

Is your suggested enhancement related to a problem? Please describe.

Currently, when malware is detected, it is deleted.
This results in a former URL that points to a 404 page.

This is suboptimal for several reasons:

• Users have no easy way of knowing what the mod in question did, which helps them determine how likely they are to have been infected.
• Users have no easy way of knowing what modpacks included this mod, which also helps them determine how likely they are to have been infected.
• Several modpacks, having included the infected mod, are likely to break without any notifications or warnings.

Describe the solution you'd like

Ideally, some combination of the below would be great:

1. Keep the page's (frozen) description, albeit after removing every possible link from that page and removing the downloads.
2. Display an agressive banner and/or popup on the page explaining that it is malware; link or redirect to blog post.
3. Search modpacks for the infected mod, disable downloads, and display an agressive warning.

Describe alternatives you've considered

Currently, it is possible to find out most of this information on the wayback machine, but that is a pain.

Additional context

No response