Phi95 theme font tweak

nepeta leijon on the discord wrote a [little font tweak](https://discord.com/channels/995424014065471600/1329206139833028769/1400736046551007292) for the phi95 theme before it released that adds a bitmap font. it goes like this:
```css
@font-face {
font-family: 'MS Sans Serif';
font-display: swap;
src: url(ms-sans-serif-1.otf.woff2) format('woff2'); /* set the url to wherver you are storing the woff2 */
}

html.ey {
/* change the following at the top of html.ey */
--font-main: 'MS Sans Serif';
--font-serif: 'MS Sans Serif';
--font-mono: 'MS Sans Serif';
```
you have to install the font, but i think it looks _much_ better with the tweak.