Save and hiding is too fast when only warning is on

As the title, if I leave the focus from the translation cell, it is automatically saved and hidden, which is inconvenient if I need a few steps (like copy or check) to fill in the translation.

This might be nice if an option is allowed to keep the most recently used like 3, 5, etc lines, or save the cells manually.

Also, autosave seems to also jump the focus to the first line of the list, which may be out of view and decided not to translate (but not add `@Invariant` to original).