Migrate from Kotlin synthetics to Jetpack view binding

app/build.gradle.kts

@@ -4,7 +4,6 @@ import java.util.*
 plugins {
     id("com.android.application")
     id("kotlin-android")
-    id("kotlin-android-extensions")
 }
 
 android {

app/src/main/java/de/mm20/launcher2/fragment/PreferencesCardFragment.kt

@@ -14,7 +14,7 @@ import androidx.preference.PreferenceFragmentCompat
 import de.mm20.launcher2.R
 import de.mm20.launcher2.ktx.dp
 import de.mm20.launcher2.preferences.LauncherPreferences
-import kotlinx.android.synthetic.main.fragment_card_settings.*
+import de.mm20.launcher2.ui.legacy.view.LauncherCardView
 import kotlin.math.roundToInt
 
 class PreferencesCardFragment : Fragment(R.layout.fragment_card_settings) {
@@ -23,12 +23,9 @@ class PreferencesCardFragment : Fragment(R.layout.fragment_card_settings) {
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
+        val previewCard = view.findViewById<LauncherCardView>(R.id.previewCard)
         previewCard.strokeOpacity = 0xFF
 
-        val context = requireContext()
-
-
-        val previewCard = previewCard
         val prefFragment = PreferenesCardInnerFragment()
 
         prefFragment.onPreferencesReady = {