Show search bar by default in AppChooserDialog (#12013)

* By setting `self.search_bar.set_search_mode` to True, the search bar will be displayed when opening the dialog "Choose application" without having to type a key first

files/usr/share/cinnamon/cinnamon-settings/modules/cs_startup.py

@@ -916,6 +916,7 @@ def __init__(self):
         self.search_bar = Gtk.SearchBar()
         self.search_bar.add(self.entry)
         self.search_bar.props.hexpand = True
+        self.search_bar.set_search_mode(True)
 
         list_box = Gtk.ListBox()
         list_box.set_sort_func(self.sort_apps, None)