cannot add variables in settings page wont load

[leen12]

Describe the bug

when i load the page it loads ok half a second later it goes blank and i get this error

e```
ntrypoint-BERfGbRl.js:56 TypeError: Cannot read properties of null (reading 'gitProvider')
at page-DgBBrAk3.js:1:12408
at Array.map ()
at Ze (page-DgBBrAk3.js:1:12273)
at Nl (entrypoint-BERfGbRl.js:56:49721)
at vu (entrypoint-BERfGbRl.js:56:58601)
at Cm (entrypoint-BERfGbRl.js:58:8943)
at Wm (entrypoint-BERfGbRl.js:58:845)
at ZA (entrypoint-BERfGbRl.js:58:774)
at Au (entrypoint-BERfGbRl.js:56:85601)
at entrypoint-BERfGbRl.js:56:37046
wu @ entrypoint-BERfGbRl.js:56
Pm.n.callback @ entrypoint-BERfGbRl.js:56
Gf @ entrypoint-BERfGbRl.js:56
qA @ entrypoint-BERfGbRl.js:56
e6 @ entrypoint-BERfGbRl.js:58
e.unstable_runWithPriority @ entrypoint-BERfGbRl.js:48
an @ entrypoint-BERfGbRl.js:56
hn @ entrypoint-BERfGbRl.js:58
Au @ entrypoint-BERfGbRl.js:56
(anonymous) @ entrypoint-BERfGbRl.js:56
e.unstable_runWithPriority @ entrypoint-BERfGbRl.js:48
an @ entrypoint-BERfGbRl.js:56
dm @ entrypoint-BERfGbRl.js:56
Tt @ entrypoint-BERfGbRl.js:56
tn @ entrypoint-BERfGbRl.js:56
Em @ entrypoint-BERfGbRl.js:56
(anonymous) @ page-DgBBrAk3.js:1
nrWrapper @ variables:9
Promise.then
i.then @ variables:9
(anonymous) @ page-DgBBrAk3.js:1
(anonymous) @ page-DgBBrAk3.js:1
xm @ entrypoint-BERfGbRl.js:56
n6 @ entrypoint-BERfGbRl.js:58
e.unstable_runWithPriority @ entrypoint-BERfGbRl.js:48
an @ entrypoint-BERfGbRl.js:56
kr @ entrypoint-BERfGbRl.js:58
Au @ entrypoint-BERfGbRl.js:56
(anonymous) @ entrypoint-BERfGbRl.js:56
e.unstable_runWithPriority @ entrypoint-BERfGbRl.js:48
an @ entrypoint-BERfGbRl.js:56
dm @ entrypoint-BERfGbRl.js:56
Tt @ entrypoint-BERfGbRl.js:56
jm @ entrypoint-BERfGbRl.js:56
xs @ entrypoint-BERfGbRl.js:58
at.render @ entrypoint-BERfGbRl.js:58
jse @ platform-DRY_N1tD.js:2256
await in jse
(anonymous) @ platform-DRY_N1tD.js:2256
page-DgBBrAk3.js:1 Uncaught (in promise) TypeError: Unhandled Promise Rejection: Cannot read properties of null (reading 'gitProvider')
at page-DgBBrAk3.js:1:12408
at Array.map ()
at Ze (page-DgBBrAk3.js:1:12273)
at Nl (entrypoint-BERfGbRl.js:56:49721)
at vu (entrypoint-BERfGbRl.js:56:58601)
at Cm (entrypoint-BERfGbRl.js:58:8943)
at Wm (entrypoint-BERfGbRl.js:58:845)
at ZA (entrypoint-BERfGbRl.js:58:774)
at Au (entrypoint-BERfGbRl.js:56:85601)
at entrypoint-BERfGbRl.js:56:37046

### Link to the blitz that caused the error

https://stackblitz.com/edit/sb1-yufvdjdl?file=.vscode%2Fsettings.json

### Steps to reproduce

go to https://stackblitz.com/settings/variables or 
https://stackblitz.com/settings/

and click variables. 

### Expected behavior

open the page correctly 

### Parity with Local

- [x] I have [run the project in my local machine](https://github.com/stackblitz/webcontainer-core/blob/main/repro.md#try-locally) and I could not reproduce the issue.

### Screenshots

_No response_

### Platform

Browser name = Firefox
Full version = 134.0
Major version = 134
navigator.appName = Netscape
navigator.userAgent = Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
performance.memory = undefined
Hash = 1b4252dd

### Additional context

_No response_

[letapjar]

I have the same issue. also using firefox 134.0.2