Improve emoji-picker (#5515)

* Improve emoji-picker

* remove unimplanted translation

* カテゴリのサジェスト

* use unique

src/server/api/endpoints/admin/emoji/update.ts

@@ -25,6 +25,10 @@ export const meta = {
 			validator: $.str
 		},
 
+		category: {
+			validator: $.optional.str
+		},
+
 		url: {
 			validator: $.str
 		},
@@ -53,6 +57,7 @@ export default define(meta, async (ps) => {
 	await Emojis.update(emoji.id, {
 		updatedAt: new Date(),
 		name: ps.name,
+		category: ps.category,
 		aliases: ps.aliases,
 		url: ps.url,
 		type,