replace --show-logo with --no-art

[o2sh]

Given the recent addition of #983, perhaps we could simplify the --show-logo option into a more straightforward Boolean flag, such as --no-art.

VISUALS:
      --no-color-palette  Hides the color palette
      --no-art            Hides the ascii art or image if provided

[spenserblack]

Yeah, that makes sense to me! --no-foo flags are pretty common.
If we implement a config, though, it might be good to having an accompanying --art flag, so the usage would be [--no-]art. Just that, whenever there's a config option, there's usually also an off and on flag. E.g. git commit [--no-]gpg-sign. I wonder if this is a clap builtin 🤔