Fix identity subcommand ordering

[jdetter]

Description of Changes

Dylan got understandably confused by this because the subcommands were just very poorly ordered. I've reordered them alphabetically (discord thread)

New help message:

boppy@boppy-macbook SpacetimeDB % cargo run -- identity --help
    Finished dev [unoptimized + debuginfo] target(s) in 0.18s
     Running `target/debug/spacetime identity --help`
Manage identities stored by the command line tool

Usage: spacetime identity
       spacetime identity <COMMAND>

Commands:
  find          Find an identity for an email
  import        Import an existing identity into your spacetime config
  init-default  Initialize a new default identity if it is missing from a server's config
  list          List saved identities which apply to a server
  new           Creates a new identity
  recover       Recover an existing identity and import it into your local config
  remove        Removes a saved identity from your spacetime config
  token         Print the token for an identity
  set-default   Set the default identity for a server
  set-email     Associates an email address with an identity
  set-name      Set the name of an identity or rename an existing identity nickname
  help          Print this message or the help of the given subcommand(s)

Options:
  -h, --help  Print help

API and ABI breaking changes

No; CLI-only changes.

Expected complexity level and risk

How complicated do you think these changes are? Grade on a scale from 1 to 5,
where 1 is a trivial change, and 5 is a deep-reaching and complex change.

This complexity rating applies not only to the complexity apparent in the diff,
but also to its interactions with existing and future code.

If you answered more than a 2, explain what is complex about the PR,
and what other components it interacts with in potentially concerning ways.

1

[bfops]

LGTM ✔️

I didn't go through with a fine-toothed comb but the output looks right and nothing's obviously wrong 👍