* merge app config from the extensions
* improved service injection in unit tests
* extra unit test
* fix content tests
* update code as per review
* fix lint
* fix lint
* update code and tests
* update schema
* ATS-854 Add media tracks to player from webvtt rendition
* ATS-854 Fix condition
* ATS-854 Fix lint
* ATS-854 Move logic to media player
* ATS-854 Fix angular.json
* ATS-854 Fix error