[ENH] Add index on CardId into Comments collection

models/cardComments.js

@@ -57,10 +57,10 @@ CardComments.helpers({
 CardComments.hookOptions.after.update = { fetchPrevious: false };
 
 if (Meteor.isServer) {
-   // Comments are often fetched within a card, so we create an index to make these
+  // Comments are often fetched within a card, so we create an index to make these
-   // queries more efficient.
+  // queries more efficient.
-   Meteor.startup(() => {
+  Meteor.startup(() => {
-      CardComments._collection._ensureIndex({ cardId: 1, createdAt: -1 });
+    CardComments._collection._ensureIndex({ cardId: 1, createdAt: -1 });
   });
   
   CardComments.after.insert((userId, doc) => {