Unset companies and owners (#1185)

* unselect users and companies

* Icon now works with theme

---------

Co-authored-by: vboxuser <vboxuser@Ubu.myguest.virtualbox.org>
Co-authored-by: Charles Bochet <charlesBochet@users.noreply.github.com>

front/src/modules/companies/components/CompanyPickerCell.tsx

@@ -77,7 +77,13 @@ export function CompanyPickerCell({
       });
     setIsCreating(false);
   }
-
+  const noUser: EntityForSelect = {
+    entityType: Entity.Company,
+    id: '',
+    name: 'No Company',
+    avatarType: 'rounded',
+    avatarUrl: '',
+  };
   return isCreating ? (
     <DoubleTextCellEdit
       firstValue={searchFilter}
@@ -97,6 +103,7 @@ export function CompanyPickerCell({
         selectedEntity: companies.selectedEntities[0],
         loading: companies.loading,
       }}
+      noUser={noUser}
     />
   );
 }