heave fewer redraws as main method for data application, minor fixes

MareSynchronos/WebAPI/Files/FileUploadManager.cs

@@ -198,7 +198,7 @@ public sealed class FileUploadManager : DisposableMediatorSubscriberBase
         Logger.LogDebug("Verifying {count} files", unverifiedUploadHashes.Count);
         var filesToUpload = await FilesSend([.. unverifiedUploadHashes], visiblePlayers.Select(p => p.UID).ToList(), uploadToken).ConfigureAwait(false);
 
-        foreach (var file in filesToUpload.Where(f => !f.IsForbidden))
+        foreach (var file in filesToUpload.Where(f => !f.IsForbidden).DistinctBy(f => f.Hash))
         {
             try
             {