refactor: spell American in names and text

[noctuum]

Every British spelling under crates/ is American: recognise becomes recognize, and so do serialise, normalise, cancelled, behaviour, licence and spelt with their forms; nought becomes zero. crates/core/src/recognise/ moves to crates/core/src/recognize/, and normalise.rs in it to normalize.rs. CANCELLED, a status AniList sends, keeps its spelling.

Four lines a person reads change: benshi why prints recognized: and unrecognized:, the daemon says task was canceled, and benshi login says login canceled. The variants of a why answer on the socket are renamed with them, so a client of this version does not read the answer of a daemon started before it.

cargo test --workspace passes, 1070 tests, the same tests as before under their new names.