Deambiguifying the floating tags

BUR #10105 has been rejected.

create alias floating -> floating_(midair)
create alias afloat -> floating_on_liquid
remove alias floating -> floating_(midair)
deprecate floating

floating has been ambiguous for too long, so let's do something about it. This is my proposal.

I'm aware that floating_(midair) isn't the best tag name, but it's the least weird-sounding one I could think of - floating_in_midair, floating_through_air, floating_above_ground etc. all sound very awkward to me. I'm open to better suggestions.

I don't dislike the BUR, I just don't know what name would be best for the air floating tag.

floating in air maybe? That seems like a pretty natural way to phrase it.

Unless you're floating in space.

This bulk update request is pending automatic rejection in 5 days.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #10105 (forum #211474) has been rejected by @DanbooruBot.