GtkShortcutsWindow search entry not cleared on re-open
GtkShortcutsWindow search entry text is not cleared when the shortcut window is opened the second time, though the filter is not applied.
How to reproduce:
- open gtk4-widget-factory -> headerbar menu -> keyboard shortcuts
- Open the search and type something (the results are filtered accordingly)
- Close keyboard shorts and reopen
- Open search again.
Result: The previously entered text is shown in the search entry.