Why do you think this is spell check and not syntax checking?
The tab shows as unsaved up at the top and there is a JS next to that, which probably means it's trying to parse that as JavaScript. Just save the file with an appropriate extension (maybe .txt or .md) or you can (I think) also manually set that behavior.
[Bracket City]
May 17, 2025
https://www.theatlantic.com/games/bracket-city/
Rank: π (Mayor)
β Wrong guesses: 6
Total Score: 88.0 π©π©π©π©π©π©π©π©π©β¬
The frog/Nintendo thing took me a while, and I also managed to miss the new years hint TWICE because I entered it using numerals like an idiot.