message: fix: use regex to split command args (to parse other whitespace characters correctly)
diff: @@ -723,7 +723,7 @@ export const parseCommand = (
  ): ParsedCommand | undefined => {
  let content = msg.content.slice(prefix.length)
  if (client.spacesAfterPrefix === true) content = content.trim()
  - const args = content.split(' ')
  + const args = content.split(/\s/)
  const name = args.shift()
  if (name === undefined) return
  