fix emoji name overflow (again) and sorting

frontend/lib/emojis.mjs

@@ -53,7 +53,7 @@ export async function findEmojis(search) {
   await emojisLoaded;
   let groups = [[], []];
   if (search.length < 1) {
-    for (let letter in emojis)
+    for (let letter of Object.keys(emojis).sort())
       for (let emoji of emojis[letter]) {
         (emoji[1][0] === ":" ? groups[0] : groups[1]).push(emoji);
       }

frontend/styles.css

@@ -299,6 +299,11 @@ button.small-button {
   flex-shrink: 0;
 }
 
+.emoji-name {
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
 .emoji-option.selected {
   background: var(--fg-transparent);
 }