Miss the "Back" button when creating a new function app with the latest VS Code Insiders

[v-dantch]

OS: Win10
Build Version: 20190917.1

Repro Steps:

1. F1 --> Type and select "Azure Functions: Create Function App in Azure...".
2. Enter a valid name --> Press "Enter" to next.
3. Check whether there is a "Back" button or not.

Expect:
There is a "Back" button.

Actual:
No "Back" button displays.

More Info:

1. This issue reproduces on the latest and preview release builds with the latest VS Code Insiders 1.39.0-insider(user setup).
2. This issue DOES NOT reproduce on the latest VS Code 1.38.1 (user setup).
3. There is a similar bug 1159 in App Service Extension.
4. There is still no "Back" button when creating a new project.
   
5. Pop up below error when canceling to create a new project with below error.
   

[ejizba]

Likely fixed in microsoft/vscode#81142

Need to try tomorrow's insider build of VS Code

[v-dantch]

Verified on Windows and Mac with the latest VS Code - Insiders, this issue doesn't reproduce. So close this bug for now.

VS Code -Insiders Info:
Version: 1.39.0-insider (user setup)
Commit: 817eb6b0c720a4ecbc13c020afbbebfed667aa09
Date: 2019-09-25T05:28:51.690Z
Electron: 6.0.9
Chrome: 76.0.3809.146
Node.js: 12.4.0
V8: 7.6.303.31-electron.0
OS: Windows_NT x64 10.0.18362