[PM-20041] Deleting Notifications when Task is completed (#5896)

* mark all notifications associated with a security task as deleted when the task is completed

* fix spelling

* formatting

* refactor "Active" to "NonDeleted"

* refactor "Active" to "NonDeleted" for stored procedure

* only send notifications per user for each notification

* move notification status updates into the DB layer to save on multiple queries and insertions from the C#

* Only return UserIds from db layer

* omit userId from `MarkTaskAsCompletedCommand` query.

The userId from the notification will be used

* update UserIds

* consistency in comments regarding `taskId` and `UserId`

src/Core/Vault/Commands/MarkTaskAsCompletedCommand.cs

@@ -14,15 +14,19 @@ public class MarkTaskAsCompletedCommand : IMarkTaskAsCompleteCommand
     private readonly ISecurityTaskRepository _securityTaskRepository;
     private readonly IAuthorizationService _authorizationService;
     private readonly ICurrentContext _currentContext;
+    private readonly IMarkNotificationsForTaskAsDeletedCommand _markNotificationsForTaskAsDeletedAsync;
+
 
     public MarkTaskAsCompletedCommand(
         ISecurityTaskRepository securityTaskRepository,
         IAuthorizationService authorizationService,
-        ICurrentContext currentContext)
+        ICurrentContext currentContext,
+        IMarkNotificationsForTaskAsDeletedCommand markNotificationsForTaskAsDeletedAsync)
     {
         _securityTaskRepository = securityTaskRepository;
         _authorizationService = authorizationService;
         _currentContext = currentContext;
+        _markNotificationsForTaskAsDeletedAsync = markNotificationsForTaskAsDeletedAsync;
     }
 
     /// <inheritdoc />
@@ -46,5 +50,8 @@ public class MarkTaskAsCompletedCommand : IMarkTaskAsCompleteCommand
         task.RevisionDate = DateTime.UtcNow;
 
         await _securityTaskRepository.ReplaceAsync(task);
+
+        // Mark all notifications related to this task as deleted
+        await _markNotificationsForTaskAsDeletedAsync.MarkAsDeletedAsync(taskId);
     }
 }