jest.config.ts

* refactor(migrations): implemented migration validator

* refactor(migrations): introduce deprecated flag

* refactor(migrations): tidy

* refactor(migrations): improve validator

* refactor: fix launch.json

* refactor: fix build

* refactor: fix coverage

* refactor: fix coverage

* refactor: introduce new jest custom matcher

* refactor: revert unnecessary changes

* refactor: return override