🔗 Linked issue

📚 Description

When I try to update the appConfig using updateAppConfig and add a new property with an array value, I get an object instead of an array.
Example:

defineAppConfig({
  foo: bar 
})

updateAppConfig({
  test: [1,2]
})

Expected config:

{ 
  foo:bar,
  test: [1,2] 
}

But got:

{ 
  foo:bar, 
  test: { 
    '0': 1,
    '1': 2
  }
}