Add missing world query params

[maplefluff]

Added 2 missing world query params avatarSpecific: search for avatar specific worlds (or exclude them) <- boolean (can be seen on the "avatar worlds" category in vrchats website) noplatform: exclude this platform <- string (you can see this in use for the category "spotlight pc")

there are two other params that i know of, too releaseStatus (may be worth adding potentially) organization (unsure if worth adding, ive only ever seen it be "vrchat") I figured id mention them just for reference

I did test these on the worlds/recents endpoint but they have no effect like most other tags. avatarSpecific also didnt seem to work on worlds/active