Create Courses page

[LearnPRG-py]

For aspects such as the hearthstone-evocatus ASL course we'd want to make a course page based on a duolingo-style design for now. The future goal would be to migrate this to one inspired by the tree from Magnus Chase (@Sreshty-Beshty give me the name again).

Here is the plan we had detailed for this.

[LearnPRG-py]

@Sreshty-Beshty You are working on this, add sub-issues as needed.