refactor(@desktop/general): warnings caused due to inconsistent return types between service and interface are fixed

src/app/modules/main/activity_center/io_interface.nim

@@ -27,7 +27,7 @@ method unreadActivityCenterNotificationsCount*(self: AccessInterface): int {.bas
 method convertToItems*(self: AccessInterface, activityCenterNotifications: seq[ActivityCenterNotificationDto]): seq[Item] {.base.} =
   raise newException(ValueError, "No implementation available") 
 
-method getActivityCenterNotifications*(self: AccessInterface) {.base.} =
+method getActivityCenterNotifications*(self: AccessInterface): seq[Item] {.base.} =
   raise newException(ValueError, "No implementation available") 
 
 method markAllActivityCenterNotificationsRead*(self: AccessInterface): string {.base.} =

src/app/modules/main/activity_center/module.nim

@@ -107,7 +107,7 @@ method getActivityCenterNotifications*[T](self: Module[T]): seq[notification_ite
 method markAllActivityCenterNotificationsRead*[T](self: Module[T]): string =
   self.controller.markAllActivityCenterNotificationsRead()
 
-method markAllActivityCenterNotificationsReadDone*[T](self: Module[T]): string =
+method markAllActivityCenterNotificationsReadDone*[T](self: Module[T]) =
   self.view.markAllActivityCenterNotificationsReadDone()
 
 method markActivityCenterNotificationRead*[T](

src/app/modules/main/activity_center/view.nim

@@ -51,7 +51,7 @@ QtObject:
     self.model.updateUnreadCount(count)
 
   proc loadMoreNotifications(self: View) {.slot.} =
-    self.delegate.getActivityCenterNotifications()
+    discard self.delegate.getActivityCenterNotifications()
 
   proc markAllActivityCenterNotificationsRead(self: View): string {.slot.} =
     result = self.delegate.markAllActivityCenterNotificationsRead()