smol fixes (fix unsupported ZWJ emojis and italic text cutoff)

frontend/lib/chat.mjs

@@ -273,12 +273,10 @@ const printChatMessage = (eventType, user, colour, content) => {
   if (user != null) {
     const userName = document.createElement("strong");
     userName.style = `--user-color: #${colour}`;
-    userName.textContent = user;
+    userName.textContent = user + " ";
     chatMessage.appendChild(userName);
   }
 
-  chatMessage.appendChild(document.createTextNode(" "));
-
   if (content != null) {
     chatMessage.appendChild(content);
   }

frontend/styles.css

@@ -292,6 +292,7 @@ button.small-button {
   display: flex;
   align-items: center;
   justify-content: center;
+  overflow: hidden;
 }
 
 .emoji-option.selected {