Require Android 8+

Given that the next stable version of Chrome (120) will require Android 8+, it's
inevitable that the WebView functionality will gradually break. As always, newer
OS versions are recommended for better support with evolving Internet technologies.

According to https://apilevels.com/, Android 8+ still covers 93.7% of Android users.

app/src/main/java/eu/kanade/presentation/manga/components/MangaCoverDialog.kt

@@ -2,7 +2,6 @@ package eu.kanade.presentation.manga.components
 
 import android.graphics.Bitmap
 import android.graphics.drawable.BitmapDrawable
-import android.os.Build
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Row
@@ -176,14 +175,9 @@ fun MangaCoverDialog(
                                 // Copy bitmap in case it came from memory cache
                                 // Because SSIV needs to thoroughly read the image
                                 val copy = (drawable as? BitmapDrawable)?.let {
-                                    val config = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-                                        Bitmap.Config.HARDWARE
-                                    } else {
-                                        Bitmap.Config.ARGB_8888
-                                    }
                                     BitmapDrawable(
                                         view.context.resources,
-                                        it.bitmap.copy(config, false),
+                                        it.bitmap.copy(Bitmap.Config.HARDWARE, false),
                                     )
                                 } ?: drawable
                                 view.setImage(copy, ReaderPageImageView.Config(zoomDuration = 500))