Enable text selection for Xcode version

[yo1995]

Close #415

[MattKiazyk]

.textSelection is only available on MacOS 12. Currently Xcodes has a minimum version of 11.

You can either wrap this in a #available or this PR can wait a bit. Some point soon we'll update to min of 12.

[yo1995]

Thanks! It was an oversight from my part - I only saw the "build with macOS 12" part in README, but didn't read the "run on macOS 11.0" line 😅

I'll defer it to your decision - feel free to wait min target becomes macOS 12 or edit this PR with

private extension InfoPane {
    @ViewBuilder
    func textSelection(_ enabled: Bool) -> some View {
        if #available(macOS 12, *), enabled {
            self
                .textSelection(.enabled)
        } else {
            self
        }
    }
}

[MattKiazyk]

Thanks!

See comment around macOS 12 vs 11

[MattKiazyk]

This has been added via #503