chore(cli): Improve error message for attempting genesis with non-empty config dir #11065

Job	Run time
diff	7s
dprint-format	7s
typos / Spell Check with Typos	9s
docusaurus	0s
docs-lint	0s
license-check	6s
rosetta / validation	8m 41s
move-ide	0s
move-tests	0s
rust / deny / cargo deny (bans, licenses, sources)	7s
rust / deny / cargo deny (advisories)	13s
rust / rust-lints / examples	0s
rust / rust-lints / cargo-sort	6s
rust / rust-lints / rustfmt	15s
rust / rust-lints / clippy	2m 57s
rust / crates-changes	9s
rust / external-changes	7s
rust / execution-cut / cutting a new execution layer	44s
rust / external-tests / Test external crates	4m 9s
rust / external-tests / Check Unused Dependencies (--all-features)	21s
rust / external-tests / Check Unused Dependencies (--no-default-features)	23s
rust / crates-tests / pg-integration	0s
rust / crates-tests / Simtest rust	23m 47s
rust / crates-tests / Test rust crates	5m 39s
rust / crates-tests / Check Unused Dependencies (--all-features)	2m 53s
rust / crates-tests / Check Unused Dependencies (--no-default-features)	1m 52s
rust / crates-tests / test-extra (self-hosted)	6m 37s
split-cluster / validate-testnet	5m 19s
	1h 4m 48s

Provide feedback