save default search options (#2445)

* set default times for daterange objects
* allow to show order and order by fields
* move search to modal
* more options for page size
* save export visibility in cookie

src/Repository/ProjectRepository.php

@@ -271,6 +271,12 @@ class ProjectRepository extends EntityRepository
             case 'customer':
                 $orderBy = 'c.name';
                 break;
+            case 'project_start':
+                $orderBy = 'p.start';
+                break;
+            case 'project_end':
+                $orderBy = 'p.end';
+                break;
             default:
                 $orderBy = 'p.' . $orderBy;
                 break;