FEATURE: lets users favorite 2 badges to show on user-card (#13151)

db/migrate/20210218144656_add_is_favorite_to_user_badge.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddIsFavoriteToUserBadge < ActiveRecord::Migration[6.0]
+  def change
+    add_column :user_badges, :is_favorite, :boolean
+  end
+end