Loading spinner is not shown after "select directory"

Select direcory -> Choose massive file/folder -> No reaction. Just start screen

Reproduce the flow described in the issue: select a directory, choose a large file or folder, and observe the return to the start screen without a visible loading spinner. Trace the directory-selection entry point and identify the loading state involved. Done means the operation visibly indicates loading while processing the selected item.

Written by the indexing model from the issue text.