Clash warning should show up on Course Selection if all sections of a required type are clashing

[soumitradev]

No description provided.

[soumitradev]

https://crux.slite.com/app/docs/BjmEbc4Bd8fzJm/Clash-warning-should-show-up-on-Course-Selection-if-all-sections-of-a-required-type-are-clashing

[soumitradev]

Since the getAllCourses request is being called by the sidebar on every page load, it is better to first implement the search service, so that the db joins we will need to do will be on a smaller set of courses instead of the set of all courses. This feature can only be implemented once the search features are done.