feat: refactor smart transaction sender & confirmation (#114)

* feat: refactor smart transaction sender & confirmation

* chore: update eslint config

* chore: format

* feat: retry send transaction until lastValidBlockHeightOffset on block height exceeded error

* feat: add lastValidBlockHeightOffset to sendSmartTransactionWithTip

* chore: update js doc

* refactor: add lastValidBlockHeightOffset to lastValidBlockHeight in confirmTransaction params

* fix: typo

* refactor: return built transaction instead of serialized transaction

* fix: consistent options

* refactor: set defaults during method call

---------

Co-authored-by: Evan <[email protected]>