Update emoji-datasource to 16.0.0

ts/util/utf16ToEmoji.ts

@@ -0,0 +1,13 @@
+// Copyright 2025 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { Buffer } from 'node:buffer';
+
+export function utf16ToEmoji(utf16: string): string {
+  const codePoints = new Array<number>();
+  const buf = Buffer.from(utf16, 'hex');
+  for (let i = 0; i < buf.length; i += 2) {
+    codePoints.push(buf.readUint16BE(i));
+  }
+  return String.fromCodePoint(...codePoints);
+}