Close side panel if needed

app/src/main/java/chat/rocket/android/activity/MainActivity.java

@@ -89,6 +89,7 @@ public class MainActivity extends AbstractAuthedActivity implements MainContract
   }
 
   private void showAddServerActivity() {
+    closeSidebarIfNeeded();
     Intent intent = new Intent(this, AddServerActivity.class);
     intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
     intent.putExtra(AddServerActivity.EXTRA_FINISH_ON_BACK_PRESS, true);