PLT-40 adding experimental support for emojis

web/sass-files/sass/partials/_base.scss

@@ -128,3 +128,11 @@ div.theme {
 .white-bg {
   background-color: white !important;
 }
+
+.emoji {
+    width: 1.5em !important;
+    height: 1.5em !important;
+    display: inline-block !important;
+    margin-bottom: 0.25em !important;
+    background-size: contain !important;
+}