Assets: Enable recursive reading for the asset view template as well

This makes asset view templates, e.g. as used by the Pose Library add-on
use recursive asset loading, see

Also works around an issue that made assets not show up at all anymore
since fc7beac8d6. I'm creating a separate report for that regression,
but in the Asset Browser and Viewer it shouldn't be apparent currently.

source/blender/editors/asset/intern/asset_list.cc

@@ -157,7 +157,7 @@ void AssetList::setup()
 
   /* Relevant bits from file_refresh(). */
   /* TODO pass options properly. */
-  filelist_setrecursion(files, 1);
+  filelist_setrecursion(files, FILE_SELECT_MAX_RECURSIONS);
   filelist_setsorting(files, FILE_SORT_ALPHA, false);
   filelist_setlibrary(files, &library_ref_);
   filelist_setfilter_options(