API docs fixes (competition creation status)

@ mention of reviewers`

@dde6khkg @Logan-Ruf`

A brief description of the purpose of the changes contained in this PR.

Previously the api docs had too many unorganized endpoints. I'd like to consolidate at least a couple endpoints in this PR:

Old

Newer

Issues this PR resolves

#482 (closed)

A checklist for hand testing

• api docs shows resources nicely

TODO

• Competition creation status -> competitions/creation_status/
• Front page competitions -> competitions/front_page/
• my profile -> users/me/ or something similar will tackle this later, maybe if we end up implementing djoser or something
• upload_submission_scores ??? may take a bit to refactor this, sticking with the other 3 for this small pr
• datasets/create_dump -> competitions/create_dump
• can_make_submission also moving to later refactor

Checklist

• Code review by me
• Hand tested by me
• I'm proud of my work
• Code review by reviewer
• Hand tested by reviewer
• Ready to merge