fix: install npm_config_platform=win32

[dimadeveatii]

Closes #60

Summary
This PR fixes an issue when trying to install electron on a linux machine with environment variable npm_config_platform=win32.

Motivation
There is support for building electron apps on linux for windows. The npm_config_platform is an environment variable that is usually used to instruct npm packages about the platform for which custom or pre-built binaries should be downloaded.

For example, running: npm_config_platform=win32 npm i electron-chromedriver should download the Windows chromedriver.exe even when I run it on a linux machine. This is currently broken and attempting to run it on linux fails with an error.

There is not much use in downloading the Windows chromedriver on linux. However, if you have a native dependency like sharp and try to install all packages with npm_config_platform=win32 npm i in order to create a Windows build, you still get the same error from electron-chromedriver package.

[codebytere]

@dimadeveatii please fill out the pull request outlining the problem that prompted this fix as well a brief explanation for how this fixes that problem. We will be able to review this once that has been done.

[dimadeveatii]

Thank you @codebytere, will do that. Thought that linking the issue is enough.

[codebytere]

@dimadeveatii no worries - it's more just to make sure the history chains are over-communicated for posterity. Thanks!