ui: Show the right token cli command on the authentication page

[briancain]

Describe the bug

As of 0.5.0, the waypoint token new command is deprecated in favor of the waypoint user commands.

Steps to Reproduce

Navigate to the Waypoint UI without being logged in.

Expected behavior

The authentication page should show the new command to run, i.e. waypoint user token

Waypoint Platform Versions
Additional version and platform information to help triage the issue if
applicable:

Additional context
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[briancain]

For reference, this is what the CLI shows if you run the old command:

brian@localghost:go λ waypoint token new                                                                                                                      ±[●][main]
The "waypoint token" commands are deprecated. They have been replaced with
the "waypoint user" set of commands. Everything that was possible with
"waypoint token" is now possible with "waypoint user". For example,
"waypoint token new" is now "waypoint user token".

<token here>