Recreating react native Disabling dark mode not working (ios)

I am trying to prevent app from using dark mode because text becomes white on a white background

These solution for darkmode have not worked for me:

I add this to my Info.plist file: (this does nothing)

<key>UIUserInterfaceStyle</key><string>Light</string>

I tried this in my AppDelegate.m: (give me build errors)

    if (@available(iOS 13.0, *)) {        rootView.overrideUserInterfaceStyle = UIUserInterfaceStyleLight;    }