accounts/abi: improve documentation and names (#21540)

* accounts: abi/bid/backends; cleaned doc errors, camelCase refactors and anonymous variable assignments

* acounts/abi/bind: doc errors, anonymous parameter assignments

* accounts/abi: doc edits, camelCase refactors

* accounts/abi/bind: review fix

* reverted name changes

* name revert

Co-authored-by: Osoro Bironga <osoro@doctaroo.com>