Delete index set confirmation window stays visible after index set deleted

## Expected Behavior

After clicking the "Delete" confirmation button the confirmation window disappears and the list of index sets is refreshed.

## Current Behavior

When deleting an index set **located on the first page of the index set lists**, the confirmation dialog window stays visible after clicking the "Delete" button. After manually closing it, the deleted index set is visible until the index set page is refreshed.


## Possible Solution

## Steps to Reproduce (for bugs)

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## Context

## Your Environment

* Graylog Version: 6.0.0-SNAPSHOT
* Java Version: openjdk version "11.0.22" 2024-01-16
* OpenSearch Version:
* MongoDB Version:
* Operating System: Ubuntu 22.04.4 LTS
* Browser version: Firefox 122.0.1