Align session picker multi-select test with default

Author: 1jehuang

src/tui/session_picker_tests.rs

@@ -667,7 +667,7 @@ fn test_space_selects_multiple_sessions_and_enter_returns_them() {
         .unwrap();
 
     match action {
-        OverlayAction::Selected(PickerResult::Selected(ids)) => {
+        OverlayAction::Selected(PickerResult::SelectedInNewTerminal(ids)) => {
             assert_eq!(
                 ids,
                 vec![