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