Local user doesn't appear to login, can't see any cameras
<!-- You must use the issue template below. BUG REPORTS THAT DO NOT CONFORM TO THE FORMAT BELOW WILL BE CLOSED AUTOMATICALLY WITHOUT WARNING. THE FORM IS HERE FOR A REASON. :) -->
<!-- Please ensure you read the documentation before creating a support request, especially the Troubleshooting page. -->

**Describe The Problem:**
I've installed and configured the package as per the instructions (using the UI) but am unable to see any cameras.  I've created a local user on the NVR and used these credentials but the Unifi UI indicates this user has never logged in. I am using the IP address of the Cloudkey Gen2+  and am able to access port 7443 from the machine homebridge.io is running on.  I've had poke about and am confident there are no network issues between the host and the protect box.  The protect system is working well and the rest of the homebridge setup works well.  I can't see anything useful in the logs I'm afraid. I'm an experienced unix developer so happy to troubleshoot!

**To Reproduce:**
Configure the the plugin with IP address, local user name and password. 

**Logs:**
<!-- In order to be helpful, include the relevant logs from Homebridge, if applicable. -->
The only logging appears to be the initializing message..
```
homebridge.log:[1/3/2021, 8:12:31 AM] Loaded plugin: homebridge-unifi-protect@4.3.5
homebridge.log:[1/3/2021, 8:12:31 AM] Registering platform 'homebridge-unifi-protect.UniFi Protect'
homebridge.log:[1/3/2021, 8:12:31 AM] [UniFi Protect] Initializing UniFi Protect platform...```

**Homebridge Configuration:**

```json
{
            "controllers": [
                {
                    "address": "192.168.1.205",
                    "name": "CloudKey",
                    "password": "-------",
                    "username": "localuser"
                }
            ],
            "platform": "UniFi Protect"
        },
```

**Screenshots:**
<!-- If applicable, add screenshots to help explain your problem. -->

**Environment:**

* **Homebridge Version:**  1.2.5
* **Node Version:** 14.15.3 
* **Homebridge-UniFi-Protect Plugin Version:** 4.3.5
* **UniFi Protect Version:** WebUI: 1.22.2 Controller: 1.13.7
* **UniFi Protect Controller Type:** UCKgen2+
* **UniFi Protect Controller Firmware Version:** Controller 1.13.7
* **Apple Device and iOS / macOS / iPadOS / tvOS Version:** iPadOS 14.2 / macoS 11.1 iOS 14.2
* **Operating System and OS Version:**  Debian Buster 10

<!-- Click the "Preview" tab before you submit to ensure the formatting is correct. -->
