[mirotalksfu] - improve emoji reaction

public/js/RoomClient.js

@@ -4719,8 +4719,11 @@ class RoomClient {
         if (userEmoji) {
             const emojiDisplay = document.createElement('div');
             emojiDisplay.className = 'animate__animated animate__backInUp';
+            emojiDisplay.style.padding = '10px';
             emojiDisplay.style.fontSize = '3vh';
-            emojiDisplay.style.color = 'grey';
+            emojiDisplay.style.color = '#FFF';
+            emojiDisplay.style.backgroundColor = 'rgba(0, 0, 0, 0.2)';
+            emojiDisplay.style.borderRadius = '10px';
             emojiDisplay.innerText = `${words[2]} ${words[1]}`;
             userEmoji.appendChild(emojiDisplay);
             setTimeout(() => {