Apply dialog theme to Material Alert Dialog Theme (#6340)

app/src/main/res/values/themes.xml

@@ -60,6 +60,7 @@
         <item name="android:enforceStatusBarContrast" tools:targetApi="Q">false</item>
         <item name="android:itemTextAppearance">@style/TextAppearance.Widget.Menu</item>
         <item name="android:alertDialogTheme">@style/ThemeOverlay.Tachiyomi.MaterialAlertDialog</item>
+        <item name="materialAlertDialogTheme">@style/ThemeOverlay.Tachiyomi.MaterialAlertDialog</item>
         <item name="textAppearanceButton">@style/TextAppearance.Widget.Button</item>
         <item name="android:buttonStyle">?attr/borderlessButtonStyle</item>
         <item name="android:backgroundDimAmount">0.32</item>