improved duration and minute selector (#2264)

* do not close modal if form is dirty
* deprecated TimesheetConfiguration
* inject timezone in form types
* cleanup usage of UserDateTimeFactory
* allow to configure increment steps for minutes
* use 15 minutes step for datetimepicker in project edit form
* use rounding rules for increments in minute select for begin and end
* allow duration in multi user and admin timesheet forms
* make dropdown values configurable

src/Controller/ProjectController.php

@@ -523,7 +523,9 @@ final class ProjectController extends AbstractController
             'action' => $url,
             'method' => 'POST',
             'currency' => $currency,
-            'include_budget' => $this->isGranted('budget', $project)
+            'timezone' => $this->getDateTimeFactory()->getTimezone()->getName(),
+            'include_budget' => $this->isGranted('budget', $project),
+            'time_increment' => 15,
         ]);
     }
 }