fix(emoji): map multi-unicode emoji properly (#2037)

* fix(emoji): map multi-unicode emoji properly

* Regenerated emoji map

quartz/util/emoji.ts

@@ -37,7 +37,7 @@ export async function loadEmoji(code: string) {
     emojimap = data
   }
 
-  const name = emojimap.codePointToName[`U+${code.toUpperCase()}`]
+  const name = emojimap.codePointToName[`${code.toUpperCase()}`]
   if (!name) throw new Error(`codepoint ${code} not found in map`)
 
   const b64 = emojimap.nameToBase64[name]