[Bug] homebridge Config UI freeze
**Description**
Homebridge Config UI frozen when trying to open UI config of homebridge-z2m

**Related devices**
Google Chrome

**To Reproduce**
1. open `http://homebridge.local/plugins?installed=homebridge-z2m`
2. Chrome tab is frozen

**Versions used**
 - This plugin: 1.1.3
 - Homebridge: 1.3.4
 - Zigbee2MQTT: 1.18.3
 - Homebridge Config UI X: 4.41.1
