SUP-2410, Fix ordering of sub-tracks on profile and dashboard

-- Ordered the subtract stats by descending order of mostRecentSubmission date for the track/subtrack
-- Copilot stats would always be the first one, if available.

Author: vikasrohit

app/my-dashboard/subtrack-stats/subtrack-stats.controller.js

@@ -24,7 +24,7 @@
         // filtering is a separate step to allow multiple pre-processings and filter out in single call
         subtrackRanks = UserStatsService.filterStats(subtrackRanks);
         // sort subtrack ranks
-        subtrackRanks = $filter('orderBy')(subtrackRanks, 'mostRecentEventDate', true);
+        subtrackRanks = $filter('orderBy')(subtrackRanks, 'mostRecentSubmissionDate', true);
 
         vm.subtrackRanks = subtrackRanks;
         vm.hasRanks = !!vm.subtrackRanks.length;

app/services/profile.service.js

@@ -108,7 +108,8 @@
             'rating': subTrack.rank.rating || 0,
             'wins': subTrack.wins,
             'submissions': (subTrack.submissions && subTrack.submissions.submissions) || 0,
-            'mostRecentEventDate': new Date(subTrack.mostRecentEventDate)
+            'mostRecentEventDate': new Date(subTrack.mostRecentEventDate),
+            'mostRecentSubmissionDate': new Date(subTrack.mostRecentSubmission)
           };
         }).filter(function(subTrack) {
           return !(subTrack.subTrack == 'COPILOT_POSTING' && subTrack.track == 'DEVELOP');
@@ -124,7 +125,8 @@
             'challenges': subTrack.challenges,
             'wins': subTrack.wins,
             'submissions': (subTrack.submissions) || 0,
-            'mostRecentEventDate': new Date(subTrack.mostRecentEventDate)
+            'mostRecentEventDate': new Date(subTrack.mostRecentEventDate),
+            'mostRecentSubmissionDate': new Date(subTrack.mostRecentSubmission)
           };
         });
       }
@@ -135,7 +137,8 @@
           'subTrack': 'SRM',
           'rank': srmStats.rank.rank,
           'rating': srmStats.rank.rating,
-          'mostRecentEventDate': new Date(srmStats.rank.mostRecentEventDate)
+          'mostRecentEventDate': new Date(srmStats.rank.mostRecentEventDate),
+          'mostRecentSubmissionDate': new Date(srmStats.mostRecentSubmission)
         });
       }
       if (stats.DATA_SCIENCE && stats.DATA_SCIENCE.MARATHON_MATCH && stats.DATA_SCIENCE.MARATHON_MATCH.rank) {
@@ -145,7 +148,8 @@
           'subTrack': 'MARATHON_MATCH',
           'rank': marathonStats.rank.rank,
           'rating': marathonStats.rank.rating,
-          'mostRecentEventDate': new Date(marathonStats.rank.mostRecentEventDate)
+          'mostRecentEventDate': new Date(marathonStats.rank.mostRecentEventDate),
+          'mostRecentSubmissionDate': new Date(marathonStats.mostRecentSubmission)
         });
       }
       if (stats.COPILOT) {