Resize Button in Pool Configuration doesn't work on BatchExplorer

**Describe the bug**
I am trying to resize a pool, but the window for resizing doesn't show up. When I click on the resize button (the cursor button in the following screenshot), this is what I get:
- Before clicking on the button:
[before](https://user-images.githubusercontent.com/43500010/115755031-82e19b00-a3ba-11eb-8620-5c573e88a43b.png)

- After clicking on the button:
[after](https://user-images.githubusercontent.com/43500010/115755065-8aa13f80-a3ba-11eb-9a79-89efd369cfac.png)

**To Reproduce**
Steps to reproduce the behaviour:
1. Go to Pools
2. Click on any pool
3. Click on Resize

**Expected behavior**
A window pops us where you can fill in the autoscale policy or set the target/low-priority nodes to a desired value.

**Logs(Click profile > View Logs > app.log, client.log)**
Attached, find the log files here:
[client.log](https://github.com/Azure/BatchExplorer/files/6359969/client.log)
[app.log](https://github.com/Azure/BatchExplorer/files/6359976/app.log)

**Version:**
- OS: OSX, Version: 11.2.3
- BatchExplorer version: Version 2.8.0-stable.484 (2.8.0-stable.484.484)