Deleted topics that were deleted from kafka still displays in dashboard

[jmilagroso]

Deleted topics that were deleted from kafka still displays in dashboard

Kafdrop: master branch
OS: centos-release-7-7.1908.0.el7.centos.x86_64
Java: openjdk version "1.8.0_252"
OpenJDK Runtime Environment (build 1.8.0_252-b09)
OpenJDK 64-Bit Server VM (build 25.252-b09, mixed mode)
Kafka: 2.2.1

Steps to replicate:

1. Create kafka topic
2. Delete kafka topic
3. Check Kafdrop Dashboard

Current Behavior:
-Topic deleted in kafka
-Deleted topic still displayed

Expected Behavior:
-Topic deleted in kafka
-Deleted topic should not be displayed