feat: misc features from review of transfer and hts scripts

update .env.sample file to include all fields eventually generated
update logger.json.sample file to include all fields
rename hfwId to scriptId consistently
separate time taken to complete first run and time taken to complete most recent run
different icons when logging start, complete, error, and summary
fix ANSI codes for colour and add BRIGHT (\x1b[1m) to make headings bold
change literal amounts specified in constants in transfer HBAR script
use existing accounts instead of lazy account creation in transfer HBAR script
add note not using "anon" for public transactions

hedera-dev / hello-future-world-js