Fixes a bug where privacy settings in the composer are sproadically not remembered.

app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java

@@ -607,8 +607,8 @@ public class ComposeActivity extends BaseActivity {
     }
 
     @Override
-    protected void onPause() {
+    protected void onStop() {
-        super.onPause();
+        super.onStop();
         if (inReplyToId != null) {
             /* Don't save the visibility setting for replies because they adopt the visibility of
              * the status they reply to and that behaviour needs to be kept separate. */