Add option to rename course

[dabslee]

Is your feature request related to a problem? Please describe.
Currently, once you make the course, you can't ever rename it.

Describe the solution you'd like
Please make it so that you can rename the course's you own somehow.

Describe alternatives you've considered
Making a new course is too much of a hassle, and it would take way too much work to migrate everything in the original course to the new one.

Additional context
None