Some initial work on replacing icons with FA5

src/components/react_button/react_button.js

@@ -1,4 +1,8 @@
 import Popover from '../popover/popover.vue'
+import { library } from '@fortawesome/fontawesome-svg-core'
+import { faSmileBeam } from '@fortawesome/free-regular-svg-icons'
+
+library.add(faSmileBeam)
 
 const ReactButton = {
   props: ['status'],

src/components/react_button/react_button.vue

@@ -36,9 +36,11 @@
         <div class="reaction-bottom-fader" />
       </div>
     </div>
-    <i
+    <FAIcon
       slot="trigger"
-      class="icon-smile button-icon add-reaction-button"
+      class="button-icon add-reaction-button"
+      :icon="['far', 'smile-beam']"
+      size="lg"
       :title="$t('tool_tip.add_reaction')"
     />
   </Popover>