Using i18n for achievement descriptions in HeroVictoryModal.

app/templates/play/level/modal/hero-victory-modal.jade

@@ -14,7 +14,7 @@ block modal-body-content
     .achievement-panel(class=achievement.completedAWhileAgo ? 'earned' : '' data-achievement-id=achievement.id data-animate=animate)
       - var rewards = achievement.get('rewards') || {};
       
-      div.achievement-description= achievement.get('description')
+      div.achievement-description= achievement.description
       
       div.achievement-rewards
         - var worth = achievement.worth;

app/views/play/level/modal/HeroVictoryModal.coffee

@@ -105,6 +105,7 @@ module.exports = class HeroVictoryModal extends ModalView
       achievement.gems = achievement.get('rewards')?.gems
     c.achievements = @achievements.models.slice()
     for achievement in c.achievements
+      achievement.description = utils.i18n achievement.attributes, 'description'
       continue unless @supermodel.finished() and proportionalTo = achievement.get 'proportionalTo'
       # For repeatable achievements, we modify their base worth/gems by their repeatable growth functions.
       achievedAmount = utils.getByPath @session.attributes, proportionalTo