Update composer.json

Added cart discount (#26)

Merge pull request #25 from EscolaLMS/fix-wrong-rule-in-request

fixed wrong rule in request

Merge pull request #23 from EscolaLMS/ordering-vouchers-by-amount

sorting by id

ordering vouchers/coupons by amount (#22)

* ordering vouchers/coupons by amount

* added missing sort options

* added missing sort options

---------

Co-authored-by: dawid.miklas <dawid.miklas@escolasoft.com>

Change error responses (#21)

Added usage to coupon resource (#20)

* Added usage to coupon resource

* Update composer

Repair cart and product fixed discount (#19)

* Cart and product fixed discount fix

* Less calculations

Merge pull request #18 from EscolaLMS/feature/STAR-997

Repair cart_fixed type coupon

Fix range and promotion conditions (#17)