Finish admin permissions page and clean up everything

js/lib/components/GroupBadge.js

@@ -0,0 +1,16 @@
+import Badge from 'flarum/components/Badge';
+
+export default class GroupBadge extends Badge {
+  static initProps(props) {
+    super.initProps(props);
+
+    if (props.group) {
+      props.icon = props.group.icon();
+      props.style = {backgroundColor: props.group.color()};
+      props.label = typeof props.label === 'undefined' ? props.group.nameSingular() : props.label;
+      props.type = 'group--' + props.group.nameSingular();
+
+      delete props.group;
+    }
+  }
+}