Add Student Table to Course Show Page

[github-actions]

Complete this after #56 and #55

User Story

• As an admin/instructor
• I can see a student roster on the course show page
• So that I know who is in my class

Discussion

In issue #55 a Course Show Page was added to the app.

In issue #56 a course table was added that can display information from /api/students/all

Your job is simple: add an api call to the course show page to get the students for that course, and display in the table on the course show page.

Acceptance Criteria

• On the course show page, there is a table with all of the students in it.

[github-actions]

Copied from ucsb-cs156/proj-organic#57

[Xalex217]

submitted pr