Fix custom category

Author: joeattardi

package.json

@@ -12,7 +12,7 @@
     "build": "npm run check && rollup -c",
     "release": "npm run build && node scripts/prepare-release.js",
     "precommit": "npm run lint && npm run test && npm run check",
-    "postinstall": "npm install --prefix docs",
+    "prebuild:docs": "npm install --prefix docs",
     "check": "tsc --noEmit",
     "check:watch": "tsc --noEmit --watch",
     "clean": "rimraf dist",

src/views/CustomEmojiCategory.ts

@@ -4,6 +4,7 @@ import { EmojiContainer } from './EmojiContainer';
 import { BaseEmojiCategory } from './BaseEmojiCategory';
 import { LazyLoader } from '../LazyLoader';
 import { Category } from '../types';
+import { categoryIcons } from '../icons';
 
 type CustomEmojiCategoryOptions = {
   category: Category;
@@ -31,7 +32,8 @@ export class CustomEmojiCategory extends BaseEmojiCategory {
     return super.render({
       category: this.category,
       emojis: this.emojiContainer,
-      emojiCount: this.customEmojis.length
+      emojiCount: this.customEmojis.length,
+      icon: categoryIcons[this.category.key]
     });
   }
 }