Clean up compatibility support code

app/src/main/res/values-v35/themes.xml

@@ -0,0 +1,8 @@
+<resources>
+    <style name="Theme.NavButtons" parent="@android:style/Theme.DeviceDefault.DayNight">
+        <item name="android:windowActionBar">false</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:windowBackground">@drawable/bg_settings_window</item>
+        <item name="android:windowOptOutEdgeToEdgeEnforcement">true</item>
+    </style>
+</resources>

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

@@ -3,6 +3,5 @@
         <item name="android:windowActionBar">false</item>
         <item name="android:windowNoTitle">true</item>
         <item name="android:windowBackground">@drawable/bg_settings_window</item>
-        <item name="android:windowOptOutEdgeToEdgeEnforcement">true</item>
     </style>
 </resources>

app/src/main/res/xml/backup_rules.xml

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-   Sample backup rules file; uncomment and customize as necessary.
-   See https://developer.android.com/guide/topics/data/autobackup
-   for details.
-   Note: This file is ignored for devices older that API 31
-   See https://developer.android.com/about/versions/12/backup-restore
--->
-<full-backup-content>
-    <!--
-   <include domain="sharedpref" path="."/>
-   <exclude domain="sharedpref" path="device.xml"/>
--->
-</full-backup-content>

app/src/main/res/xml/data_extraction_rules.xml

@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-   Sample data extraction rules file; uncomment and customize as necessary.
-   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
-   for details.
--->
-<data-extraction-rules>
-    <cloud-backup>
-        <!-- TODO: Use <include> and <exclude> to control what is backed up.
-        <include .../>
-        <exclude .../>
-        -->
-    </cloud-backup>
-    <!--
-    <device-transfer>
-        <include .../>
-        <exclude .../>
-    </device-transfer>
-    -->
-</data-extraction-rules>