Enable stats recalculation; defer folder watching setup

HeavierBackGroundLoadings is now called during app opening.
Folder watching is no longer started immediately, as
StartWatchingConfiguredFoldersAsync is commented out.
StatsRecalculator is now enabled to recalculate statistics.

Author: YBTopaz8

Dimmer/Dimmer/ViewModel/BaseViewModel.cs

@@ -680,7 +680,7 @@ await lastFMRealm.WriteAsync(() =>
             try
             {
                 await OnAppOpening();
-                //await HeavierBackGroundLoadings(FolderPaths);
+                await HeavierBackGroundLoadings(FolderPaths);
 
                 await EnsureAllCoverArtCachedForSongsAsync(_backgroundCachingCts.Token);
             }
@@ -706,7 +706,7 @@ private async Task HeavierBackGroundLoadings(IEnumerable<string>? folders)
         try
         {            
             // 1. Set up watchers immediately (this is now fast)
-            await _folderMgtService.StartWatchingConfiguredFoldersAsync();
+            //await _folderMgtService.StartWatchingConfiguredFoldersAsync();
 
             // 2. Perform the slow initial scan in the background
 
@@ -770,8 +770,8 @@ public async Task PerformBackgroundInitializationAsync()
             //}
 
 
-            //var redoStats = new StatsRecalculator(RealmFactory, _logger);
-            //redoStats.RecalculateAllStatistics();
+            var redoStats = new StatsRecalculator(RealmFactory, _logger);
+            redoStats.RecalculateAllStatistics();