[FIX]Fix Tracker Show item last modifier option not working in list item view

here's the link of task that was assigned to me : https://avan.tech/item68642-Tracker-Show-item-last-modifier-option-not-working-in-list-item-view, read it please.

the problem raised is: Tracker Show item's last modified option does not work in list item view, When the radio button "Display the last modifier of the form" is checked, this does not produce any result, that is to say that on the view of the elements of the list, there will be no information related to the modifier.

Now, when it is checked, the name of the modifier is displayed, and when it is not checked, nothing is displayed. on this link the problem is clearly explained : https://avan.tech/item68642-Tracker-Show-item-last-modifier-option-not-working-in-list-item-view and it created on Monday 21 June, 2021 12:38:16 by Bernard Sfez

here's the photo with the problem, the radion button "Display the last modifier of the form" is checked but nothing is displayed, there's only the date of modification,otherwise instead of having two columns we have only one .

here's the photo with the problem solved,the radion button "Display the last modifier of the form" is checked and the name of last modifier is displayed, there's now two columns as you can see in the photo.