Migrate AboutFragment from BuildConfig to Utils.getVersionCode()

import androidx.fragment.app.Fragment

import ws.xsoh.etar.R

import java.util.Calendar

import ws.xsoh.etar.BuildConfig

class AboutFragment : Fragment() {

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {

        super.onViewCreated(view, savedInstanceState)

        view.findViewById<TextView>(R.id.version).text = BuildConfig.VERSION_NAME

        view.findViewById<TextView>(R.id.version).text = Utils.getVersionCode(context)

        val year = Calendar.getInstance().get(Calendar.YEAR).toString()

        view.findViewById<TextView>(R.id.copyright).text = getString(R.string.app_copyright, year)