Memory Management for CivitAi Browser

[Slashic]

Proposal

Stability Matrix is great, but browsing CivitAi models with the checkpoints manager causes the RAM to be clogged up and never freed, this kills a 32GB machine quite fast (under linux), implementing some soft of memory management or at least a manual cleanup would be nice.

I believe an attempt was made to fix it, but not merged yet: #1199