v0.42.1

Contributed:

• Allow for configuration of base ports (Thanks to https://github.com/AndreiEres)
• Adjust messaging for non-signRaw accounts (Thanks to https://github.com/BigBadAlien)
• Additional tests for Ethereum derivation (Thanks to https://github.com/joelamouche)

Changes:

• Adjust chrome.* location via polyfill on non-Chrome browsers
• Allow import of account via QR (where seed is provided)
• Expand error messaging for non-compatible Ledger chains
• Bump @polkadot/util to 8.1.2
• Bump @polkadot/api to 6.11.1