fixup! Bug 40177: Hide Tor icons in settings

app/src/main/res/xml/preferences.xml

@@ -99,7 +99,7 @@
 
 	<!--android:icon="@drawable/ic_tracking_protection_enabled"-->
         <androidx.preference.Preference
-            android:iconSpaceReserved="false"
+            app:iconSpaceReserved="false"
             android:key="@string/pref_key_tor_security_level_settings"
             android:title="@string/preferences_tor_security_level_settings" />
 
@@ -111,7 +111,7 @@
 
 	<!--android:icon="@drawable/ic_tor_network_settings"-->
         <androidx.preference.Preference
-            android:iconSpaceReserved="false"
+            app:iconSpaceReserved="false"
             android:key="@string/pref_key_tor_network_settings"
             android:title="@string/preferences_tor_network_settings" />
 
@@ -156,7 +156,7 @@
 
         <!--android:icon="@drawable/ic_screenshot"-->
         <SwitchPreference
-            android:iconSpaceReserved="false"
+            app:iconSpaceReserved="false"
             android:key="@string/pref_key_allow_screenshots_in_private_mode"
             android:title="@string/preferences_allow_screenshots" />