The Upper arrow and Down arrow are not shown properly

[widcardw]

The arrow symbols is like a question mark.

In src/consts.rs, it is not shown correctly. The font of my iterm2 is JetBrains Mono.

However, I tried to translate the triangles into char code.

// In JavaScript
String.fromCharCode(9660)  // '▼'
String.fromCharCode(9650)  // '▲'
String.fromCharCode(9664)  // '◀'
String.fromCharCode(9654)  // '▶'

In the app, there still remain some gap, but it's much better. But is it intended to change ▼ into 🭯 so that this would narrow the gap?

The ASCIIflow project also shows that the char code of ▲ is 9650.

By searching the unknown symbol 🭯, I found it on symbl, and it is named Upper Triangular One Quarter Block. But if we do not have the font, it will not show correctly.