Add highlight menu keys for all toggle pref controllers and custom slices

Bug: 204695404
Test: manual, robotest build pass, unit
Change-Id: Iad2e28ada8ddb766ffa7eff2c8dc581250cbd6f8

src/com/android/settings/wifi/details2/WifiAutoConnectPreferenceController2.java

@@ -18,6 +18,7 @@ package com.android.settings.wifi.details2;
 
 import android.content.Context;
 
+import com.android.settings.R;
 import com.android.settings.core.TogglePreferenceController;
 import com.android.wifitrackerlib.WifiEntry;
 
@@ -54,4 +55,9 @@ public class WifiAutoConnectPreferenceController2 extends TogglePreferenceContro
         mWifiEntry.setAutoJoinEnabled(isChecked);
         return true;
     }
+
+    @Override
+    public int getSliceHighlightMenuRes() {
+        return R.string.menu_key_network;
+    }
 }