Update rich-codex screengrabs

[ewels]

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[ewels]

Ok, this PR is quite useful and highlights a few regressions that have crept in I think:

Broken rich output in custom errors:

• Note invalid escape codes in the terminal (not just rich-codex, I get this when running the command manually too)
• This is for all errors, not just this script

$ python examples/07_custom_errors.py --hep

 Usage: 07_custom_errors.py [1;36mOPTIONS]
 1;36mINPUT

 Try running the '--help' flag for more information.
╭─ Error ───────────────────────────────────────────────────────╮
│ No such option: --hep Did you mean --help?                    │
╰───────────────────────────────────────────────────────────────╯

 To find out more, visit https://mytool.com

Change in whitespace

• The Usage: line no longer has a leading space, giving inconsistent padding with the rest of the output.
• We lost a newline before the Usage: and gained a duplicate after it
• We lost the final blank newline at the end of the output (not necessary a bad thing, don't mind this much).