refactor: don't rebuild the whole recycler object

lib/plugins.js

@@ -171,17 +171,10 @@ function plugins (settings, deviceId) {
       throw new Error('Negative note count: %j', counts)
     }
 
-    const computedRecyclers = []
-    _.forEach(it => {
-      computedRecyclers.push({
-        number: recyclers[it].number,
-        name: recyclers[it].name,
-        denomination: recyclers[it].denomination,
-        count: counts[it]
-      })
-    }, _.times(_.identity(), _.size(recyclers)))
-
-    return computedRecyclers
+    return _.map(
+      recycler => _.set('count', counts[recycler.number], recycler),
+      recyclers
+    )
   }
 
   function buildAvailableCassettes (excludeTxId) {