feat(gif) Added GIF support (GIPHY integration) (#11021)

Show GIF menu in reactions menu
Search GIFs using the GIPHY API
Show GIFs as images in chat
Show GIFs on the thumbnail of the participant that sent it
Move GIF focus using up/ down arrows and send with Enter
Added analytics

react/features/toolbox/components/web/Drawer.js

@@ -8,6 +8,11 @@ import { DRAWER_MAX_HEIGHT } from '../../constants';
 
 type Props = {
 
+    /**
+     * Class name for custom styles.
+     */
+    className: string,
+
     /**
      * The component(s) to be displayed within the drawer menu.
      */
@@ -40,6 +45,7 @@ const useStyles = makeStyles(theme => {
  */
 function Drawer({
     children,
+    className = '',
     isOpen,
     onClose
 }: Props) {
@@ -72,7 +78,7 @@ function Drawer({
                 className = 'drawer-menu-container'
                 onClick = { handleOutsideClick }>
                 <div
-                    className = { `drawer-menu ${styles.drawer}` }
+                    className = { `drawer-menu ${styles.drawer} ${className}` }
                     onClick = { handleInsideClick }>
                     {children}
                 </div>