Clear focus on restoring search

This will keep the keyboard collapsed, preventing lists not drawing

app/src/main/java/eu/faircode/email/FragmentFolders.java

@@ -349,6 +349,7 @@ public class FragmentFolders extends FragmentBase {
         if (!TextUtils.isEmpty(searching)) {
             menuSearch.expandActionView();
             searchView.setQuery(searching, false);
+            searchView.clearFocus();
         }
 
         searchView.setQueryHint(getString(R.string.title_search_device));