Make emojiboard lightweight on low end devices (#2484)

* extract emoji search component

* extract emoji board tabs component

* extract sidebar component

* extract no stickers component

* create emoji/sticker preview atom

* extract component from emoji/sticker item and sidebar buttons

* fix image group icon not loading

* separate emojis and sticker groups logic

* extract layout and emoji group components

* add virtualization in emoji board groups

* fix scroll to alignment

src/app/components/emoji-board/index.ts

@@ -1 +1,2 @@
 export * from './EmojiBoard';
+export * from './types';