Changelog for ppad-bip39-0.3.0

# Changelog - 0.3.0 (2025-06-21) * The 'mnemonic' and 'seed' function families are now total, returning 'Nothing' when supplied with bad inputs. - 0.2.1 (2025-03-02) * Various documentation improvements. - 0.2.0 (2025-02-27) * 'seed' now validates the words in the mnemonic supplied to it; 'seed_unsafe' has been added as a function that works for any wordlist. - 0.1.1 (2025-02-27) * Include wordlists in generated Haddocks. - 0.1.0 (2025-02-27) * Initial release.