Balances & accounts E2E suite follow-up

[rockbmb]

Follow-up to #296 .

This issue will frame immediately implementable improvements to the accounts & balances E2E test suite introduced in #377, since that PR was already very large.

It contains at least two parts:

1. extending transfer test coverage to all chains, not just those with low ED
   • see Modify transfer test behavior based on chain ED #414
2. enable the accounts & balances E2E suite in more chains
   • see Enable accounts E2E suite in more ecosystem chains #415