Update the default frequently used reactions to look more like the re…

…action emojis (#22)

In response to feedback around effectively "removing" the old quick reactions, we want to pre-seed the frequently used reactions with the old reactions.

There are a few quirks to this choice:
(1) we did not do the heavier work to make this per-entrypoint, so the normal "emoji" menu will also have these reactions, which may be less appropriate.
(2) if users have ever used the emoji menu before, their defaults would have already been saved. So this won't help some users.

Only the first 9 emoji are actually used, so I picked a couple extra to be in the main list.

https://app.asana.com/0/1147681086502841/1205817446804471/f

Test plan:
pointed local at this commit and saw the emojis render (after clearing the frequently used items from localStorage via localStorage.removeItem('emoji-mart.frequently') )

packages/emoji-mart/src/helpers/frequently-used.js

@@ -1,14 +1,15 @@
 import { Store } from '../helpers'
 
 const DEFAULTS = [
+  'heavy_plus_sign',
   '+1',
-  'grinning',
-  'kissing_heart',
+  '-1',
+  'eyes',
   'heart_eyes',
-  'laughing',
-  'stuck_out_tongue_winking_eye',
-  'sweat_smile',
   'joy',
+  'fire',
+  'grinning',
+  'sweat_smile',
   'scream',
   'disappointed',
   'unamused',