Currently, the loading sign shows indefinitely if the recommendation API response is 200 with an empty recommended courses list. Fix, it by showing the general recommendations. VAN-1034
- add course_run_key in API response - remove course_key from API response VAN-986
* feat: [VAN-986] Add amplitude API * feat: add suggestion * feat: add spinner Co-authored-by: Zainab Amir <zainab.amir@arbisoft.com>