Update of community stats calculation

A part of fix for
topcoder-platform/community-app#1137

Author: birdofpreyru

src/actions/stats.js

@@ -47,9 +47,11 @@ async function getCommunityStatsDone(community, uuid, challenges, token) {
       const filterFunction = Filter.getFilterFunction(community.challengeFilter);
       filtered = filtered.filter(filterFunction);
     }
-    const totalPrize = filtered.reduce(
-      (total, challenge) => total + (challenge.totalPrize || 0),
-      0,
+    const totalPrize = Math.round(
+      filtered.reduce(
+        (total, challenge) => total + (challenge.totalPrize || 0),
+        0,
+      ),
     );
     const groupService = getGroupService(token);
     const result = {