fix: allow zero-amount payment transactions in query headers (#209)

* style: update query linting and type hinting

Signed-off-by: dosi <[email protected]>

* fix: update the build_query_payment_transaction

Signed-off-by: dosi <[email protected]>

* fix: docs typos and formatting

Signed-off-by: dosi <[email protected]>

* chore: address PR feedback

Signed-off-by: dosi <[email protected]>

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Signed-off-by: dosi <[email protected]>

Author: Dosik13