feat: add games xblock editor

With this Commit, games xblock editor is in place now!
- copy code from https://github.com/openedx-unsupported/frontend-lib-content-components/pull/371/files to authoring MFE
  - It includes refactoring in .scss files, useIntl, replacing deprecated dependencies, fixing reducers, fixed cancel/close editor button, fix dragging the cards, edit some styles and also removed duplicate styling etc.

Author: Muhammad Faraz Maqsood