SMT key should not include the database prefix

[shuse2]

Expected behavior

When calculating the smt key, the input value includes DB key (1byte) in https://github.com/LiskHQ/lisk-sdk/blob/2b91c4fa8a68f6d5a315fb62e91f2672a799b8ba/elements/lisk-chain/src/db_keys.ts

When calculating the SMT key, this bytes needs to be removed as well.

Actual behavior

https://github.com/LiskHQ/lisk-sdk/blob/2b91c4fa8a68f6d5a315fb62e91f2672a799b8ba/elements/lisk-chain/src/state_store/utils.ts#L24-L25

Steps to reproduce

console log the input of this function and check if the first byte is db key, or module id

Which version(s) does this affect? (Environment, OS, etc...)

feature/6554-improve-framework-architecture