🎨 Improved Legendary source

- Fixed wrong library iteration
- Fixed executable format
- Added toggle in the preferences
- Added legendary to on_import_action

src/preferences.py

@@ -76,6 +76,10 @@ class PreferencesWindow(Adw.PreferencesWindow):
     itch_action_row = Gtk.Template.Child()
     itch_file_chooser_button = Gtk.Template.Child()
 
+    legendary_expander_row = Gtk.Template.Child()
+    legendary_action_row = Gtk.Template.Child()
+    legendary_file_chooser_button = Gtk.Template.Child()
+
     sgdb_key_group = Gtk.Template.Child()
     sgdb_key_entry_row = Gtk.Template.Child()
     sgdb_switch = Gtk.Template.Child()
@@ -156,6 +160,9 @@ class PreferencesWindow(Adw.PreferencesWindow):
         # itch
         self.create_preferences(self, "itch", "itch", True)
 
+        # Legendary
+        self.create_preferences(self, "legendary", "Legendary", True)
+
         # SteamGridDB
         def sgdb_key_changed(*_args):
             shared.schema.set_string("sgdb-key", self.sgdb_key_entry_row.get_text())