A user reported that their proxy ZScaller has issues with Electron's fetch. More research needs to be done to understand why this is not playing nice wholistically...
... but, to unblock GitHub scenarios like Copilot, we add this setting to change the implementation of fetch used.
At some point, we need to have http.useElectronFetch setting be enabled by default and when that happens, this setting can be removed in favor of that.
cc @chrmarti @alexdima
* Attempt to use Electron fetch for github-authentication
Also changes fallback from node-fetch to the built-in Node fetch
* Remove Content-Length header Electron compatibility
It looks like it was set incorrectly to the body contents anyways.
