change xcode_settings in binding.gyp for universal macOs build

[poisonReact]

🍎

• makes node.keytar work on arm64 and x86 architecture

[kaatt]

Recommend against this, this will double the binary size. I have two separate builds for x64 and arm64 and only include the .node for the target arch.

[poisonReact]

Recommend against this, this will double the binary size. I have two separate builds for x64 and arm64 and only include the .node for the target arch.

we are specially build a universal version for macOs application so as not to confuse users

[maccman]

Looking forward to this one!

[benoist]

Only way for us to use keytar on a universal build was to use this pull request in combination with buildDependenciesFromSource in the electron-builder file

Using the prebuilt adds a keytar.node to the asar file that is not universal
Using the pull request correctly adds a universal keytar.node