🐛 Replace all instances of 'context' with 'ctx'

[BestUsernamEver]

Summary

Context is now a keyword due to the 0.11.0 Typst update.

Checklist

• [x] I have fully tested all of the added features
• [x] I have fully documented all of the relevant code

Additional Notes

[BestUsernamEver]

I forgot to commit the documentation changes ;_;

[BattleCh1cken]

fixes #36