Asobu 0.1.6

Say on the website that instances can be shared

The launcher gained sharing and the site did not mention it. More to the point,
the privacy page listed everything the server holds and that list is no longer
complete: share codes are kept there too.

Codes get their own section, because what is in one is the part worth knowing.
It holds an instance's mods and packs by hash and no download addresses at all,
which is why importing one can only ever fetch files Modrinth or CurseForge
already serve. Worlds and the config folder do not travel, so a code cannot
carry a save or a server password somebody forgot was in there. Seven days, then
deleted rather than archived, and a code can be withdrawn early.

Also says plainly that whoever holds a code can pass it on, which is obvious
once stated and easy not to think about beforehand.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>