Update to new version of Twemoji

[tesmite]

The Twemoji currently used on OldTwitter is from the official repository provided by Twitter, Inc. (currently X Corp.) on Github, but this repository has already been discontinued and is stuck at v14.0.2, which does not support Unicode 15 emoji. Therefore, it would be desirable for OldTwitter to support the latest emoji by switching to the forked version by jdecked or by using the latest official version which is still updated by X Corp. on its own domain and used in the web version(e.g. https://abs-0.twimg.com/emoji/v2/72x72/1fae8.png).