Re-generate emoji assets based on TanukiEmoji

What does this MR do and why?

Regenerate any emoji related assets based on TanukiEmoji gem

To force emoji fallback, edit internal storage: gl-emoji-unicode-support-map to:

{"personZwj":false,"horseRacing":false,"flag":false,"rainbowFlag":false,"skinToneModifier":false,"9.0":false,"8.0":false,"7.0":false,"6.1":false,"6.0":false,"5.2":false,"5.1":false,"4.1":false,"4.0":false,"3.2":false,"3.0":false,"1.1":false,"meta":{"isChrome":null,"chromeVersion":null}}

In the Javascript console:

// force fallback
localStorage.setItem("gl-emoji-unicode-support-map", `{"personZwj":false,"horseRacing":false,"flag":false,"rainbowFlag":false,"skinToneModifier":false,"9.0":false,"8.0":false,"7.0":false,"6.1":false,"6.0":false,"5.2":false,"5.1":false,"4.1":false,"4.0":false,"3.2":false,"3.0":false,"1.1":false,"meta":{"isChrome":null,"chromeVersion":null}}`);

// restore it back
localStorage.removeItem("gl-emoji-unicode-support-map");