Add custom eth derivation path

[joelamouche]

• Move Network Dropdown to first step since it determines address derivation
• Add custom Eth derivation path for ethereum parachains
  • for address creation
  • for address import from seed
• Remove derivation feature for ethereum addresses (not compatible with bip 44)

Tackles #836

[joelamouche]

@jacogr This is ready for review but I dont know how to fix the lint

[joelamouche]

@jacogr lmk if you know how to fix the linter

[joelamouche]

@jacogr ready for review

[joelamouche]

@jacogr ready for review

[joelamouche]

@jacogr updated and ready for review

[joelamouche]

@jacogr fixed and ready for review

[joelamouche]

@jacogr pls review this when you have the time

[polkadot-js-bot]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.