`someone`: Toggle personal @someone emulation.

    Emulate the 2018 Discord April Fools' Day @someone feature. Enabled by
    default, but can be disabled on a per-user basis.

    **Usage:**
        `someone disable`: Disable @someone emulation for yourself.
        `someone enable`: Enable @someone emulation for yourself.
        `someone query`: Check if you have @someone emulation enabled.