Use Material 3 switches for switch preferences

We have to do this explicitly since the Material 3 library doesn't have
any magic for automatically theming the switches in androidx.preference.

Signed-off-by: Andrew Gunnerson <accounts+github@chiller3.com>

app/src/main/res/layout/material_switch_preference.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    SPDX-FileCopyrightText: 2024 Andrew Gunnerson
+    SPDX-License-Identifier: GPL-3.0-only
+-->
+<!-- The ID must match the androidx preference library. -->
+<com.google.android.material.materialswitch.MaterialSwitch
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/switchWidget"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:focusable="false"
+    android:clickable="false"
+    android:background="@null" />

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

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    SPDX-FileCopyrightText: 2024 Andrew Gunnerson
+    SPDX-License-Identifier: GPL-3.0-only
+-->
+<resources>
+    <style name="SwitchPreferenceCompat.Material3" parent="Preference.SwitchPreferenceCompat.Material">
+        <item name="android:widgetLayout">@layout/material_switch_preference</item>
+    </style>
+</resources>

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

@@ -4,5 +4,6 @@
         <item name="android:statusBarColor">@android:color/transparent</item>
         <item name="android:windowLightStatusBar">?attr/isLightTheme</item>
         <item name="windowActionModeOverlay">true</item>
+        <item name="switchPreferenceCompatStyle">@style/SwitchPreferenceCompat.Material3</item>
     </style>
 </resources>