Add an option to stop forced updates

[glitchy-sk8k9]

Please confirm the following.

• I checked the existing issues for duplicate feature requests
• I have checked that this feature request is not on our roadmap

What parts of Modrinth is your feature request related too?

App

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

No response

Describe the solution you'd like

A config option with a warning that old versions aren't supported or something.

Describe alternatives you've considered

No response

Additional context

Fixes stuff like #3062 from getting forced on us.

[anpang54]

this would be really useful, but I suspect that #3062 is actually because of some dependency and not the app itself, because one version (I think it was 0.8.5 or something) ran fine before, and after a system update it got the blank screen bug