Add embedded gists & JSON gist data/metadata (#179)

public/catppuccin-latte.css

@@ -1,3 +1,4 @@
+.chroma:not(.markdown) { color: #4c4f69 }
 /* Error */ .chroma .err { color: #d20f39 }
 /* LineLink */ .chroma .lnlinks { outline: none; text-decoration: none; color: inherit }
 /* LineTableTD */ .chroma .lntd { vertical-align: top; padding: 0; margin: 0; border: 0; }