Use ARGB8888 for covers. Fix buttons background

app/src/main/java/eu/kanade/mangafeed/data/cache/CoverGlideModule.java

@@ -0,0 +1,21 @@
+package eu.kanade.mangafeed.data.cache;
+
+import android.content.Context;
+
+import com.bumptech.glide.Glide;
+import com.bumptech.glide.GlideBuilder;
+import com.bumptech.glide.load.DecodeFormat;
+import com.bumptech.glide.module.GlideModule;
+
+public class CoverGlideModule implements GlideModule {
+
+    @Override
+    public void applyOptions(Context context, GlideBuilder builder) {
+        builder.setDecodeFormat(DecodeFormat.PREFER_ARGB_8888);
+    }
+
+    @Override
+    public void registerComponents(Context context, Glide glide) {
+
+    }
+}