Update some themes

(cherry picked from commit 526e029ebb)

app/src/main/java/eu/kanade/tachiyomi/util/view/ViewExtensions.kt

@@ -2,13 +2,11 @@
 
 package eu.kanade.tachiyomi.util.view
 
-import android.graphics.Color
 import android.graphics.Point
 import android.view.Gravity
 import android.view.Menu
 import android.view.MenuItem
 import android.view.View
-import android.widget.TextView
 import androidx.annotation.MenuRes
 import androidx.appcompat.widget.PopupMenu
 import androidx.recyclerview.widget.RecyclerView
@@ -35,8 +33,6 @@ fun View.getCoordinates() = Point((left + right) / 2, (top + bottom) / 2)
  */
 inline fun View.snack(message: String, length: Int = Snackbar.LENGTH_LONG, f: Snackbar.() -> Unit = {}): Snackbar {
     val snack = Snackbar.make(this, message, length)
-    val textView: TextView = snack.view.findViewById(com.google.android.material.R.id.snackbar_text)
-    textView.setTextColor(Color.WHITE)
     snack.f()
     snack.show()
     return snack