fix(Reddit): empty smallImageKey causes presence bug

[itsmeeudrino]

Description

This PR fixes #9283, where the Reddit presence's setActivity call is ignored due to an empty smallImageKey value.

note: this might've been introduced in a breaking change for the extension, in which case i'm happy to open a PR for all affected presences :)

Acknowledgements

• I read the Presence Guidelines
• I linted the code by running yarn format
• The PR title follows the repo's commit conventions

Screenshots

[Slowlife01]

Do it like this. Why is Netflix getting special treatment anyway lol

https://github.com/PreMiD/Presences/blob/main/websites%2FY%2FYouTube%20Music%2Fpresence.ts#L134-L136

[Slowlife01]

note: this might've been introduced in a breaking change for the extension, in which case i'm happy to open a PR for all affected presences :)

Should be handled on the extension side instead tbh

[itsmeeudrino]

Why is Netflix getting special treatment anyway lol

Yeah, there's just some weirdness going on in some of these presences... i wish we could have stricter guidelines, or at least move them to userspace for example (Reddit@Bas950)

Should be handled on the extension side instead tbh

I think it would be a qol feature, but i don't mind if the interface got a bit strict.

[darkvillager2]

This seems like a fix for an extension bug? @Timeraa / @Bas950 ?

[Slowlife01]

Not really a bug—it just generates an error instead of removing the field