Edit maintenance schedule, handle timezone properly (#11889)

Was not properly formatting to user's timezone
Also handle the case where the browser and server timezone don't match
don't show incorrect values in dialog then pop to the correct ones.
Update title on modal to be appropriate

app/Http/Controllers/Table/AlertScheduleController.php

@@ -79,23 +79,4 @@ class AlertScheduleController extends TableController
             'status' => $schedule->status,
         ];
     }
-
-//    /**
-//     * @param Request $request
-//     * @param Builder $query
-//     * @return Builder
-//     */
-//    protected function sort($request, $query)
-//    {
-//        $columns = $this->sortFields($request);
-//        $sort = $request->get('sort', $this->default_sort);
-//
-//        foreach ($sort as $column => $direction) {
-//            if (isset($columns[$column])) {
-//                $query->orderBy($columns[$column], $direction == 'desc' ? 'desc' : 'asc');
-//            }
-//        }
-//
-//        return $query;
-//    }
 }