Synchronize read receipt configuration from splash screen

// FREEBIE

src/org/thoughtcrime/securesms/ReadReceiptsIntroFragment.java

@@ -9,6 +9,7 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
 
+import org.thoughtcrime.securesms.jobs.MultiDeviceReadReceiptUpdateJob;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.thoughtcrime.securesms.util.ViewUtil;
 
@@ -34,7 +35,12 @@ public class ReadReceiptsIntroFragment extends Fragment {
     SwitchCompat preference = ViewUtil.findById(v, R.id.preference);
 
     preference.setChecked(TextSecurePreferences.isReadReceiptsEnabled(getContext()));
-    preference.setOnCheckedChangeListener((buttonView, isChecked) -> TextSecurePreferences.setReadReceiptsEnabled(getContext(), isChecked));
+    preference.setOnCheckedChangeListener((buttonView, isChecked) -> {
+      TextSecurePreferences.setReadReceiptsEnabled(getContext(), isChecked);
+      ApplicationContext.getInstance(getContext())
+                        .getJobManager()
+                        .add(new MultiDeviceReadReceiptUpdateJob(getContext(), isChecked));
+    });
 
     return v;
   }