be able to pick multiple emojis ; move up picker div to see emojis inputted into textfield; restore focus into textfield after picker closes; address #612 (#614)

webroot/js/components/chat/chat-input.js

@@ -68,6 +68,9 @@ export default class ChatInput extends Component {
           custom: json,
           initialCategory: 'custom',
           showPreview: false,
+          autoHide: false,
+          autoFocusSearch: false,
+          showAnimation: false,
           emojiSize: '24px',
           position: 'right-start',
           strategy: 'absolute',
@@ -75,6 +78,10 @@ export default class ChatInput extends Component {
         this.emojiPicker.on('emoji', emoji => {
           this.handleEmojiSelected(emoji);
         });
+        this.emojiPicker.on('hidden', () => {
+          this.formMessageInput.current.focus();
+          replaceCaret(this.formMessageInput.current);
+        });
       })
       .catch(error => {
         // this.handleNetworkingError(`Emoji Fetch: ${error}`);