Tutorial feature PR

[deanachou]

Description

New page (how-to-play) that gives a tutorial for POIPOI. Accessible from the homepage and a button on the bottom-left of the map. In the tutorial page, there is also a button at the bottom to return to the map.

Card Link

https://3.basecamp.com/5802516/buckets/37608217/card_tables/cards/7498497124

Type of change

• [X] New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Locally

Checklist before requesting a review

• [X] I have performed a self-review of my code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes
• [ ] Any dependent changes have been merged and published in downstream modules