Fix lint & Add android 12 dataExtractionRules

app/src/main/AndroidManifest.xml

@@ -58,6 +58,7 @@
         android:allowBackup="true"
         android:autoRevokePermissions="allowed"
         android:banner="@mipmap/ic_launcher"
+        android:dataExtractionRules="@xml/backup_rules"
         android:extractNativeLibs="true"
         android:fullBackupContent="@xml/backup_descriptor"
         android:fullBackupOnly="true"

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

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<data-extraction-rules xmlns:tools="http://schemas.android.com/tools"
+    tools:ignore="FullBackupContent">
+    <cloud-backup>
+        <include
+            domain="database"
+            path="sager_net.db" />
+        <include
+            domain="device_database"
+            path="configuration.db" />
+    </cloud-backup>
+    <device-transfer>
+        <include
+            domain="database"
+            path="sager_net.db" />
+        <include
+            domain="device_database"
+            path="configuration.db" />
+    </device-transfer>
+</data-extraction-rules>

lint.xml

@@ -15,6 +15,7 @@
     <issue id="TypographyQuotes" severity="ignore" />
     <issue id="DuplicateStrings" severity="ignore" />
     <issue id="ImpliedQuantity" severity="ignore" />
+    <issue id="MissingQuantity" severity="ignore" />
 
     <issue id="SelectableText" severity="ignore" />
     <issue id="InsecureBaseConfiguration" severity="ignore" />