task: set date field on edit

matsen-tool/src/app/_views/tasks/new-task/new-task.component.ts

@@ -74,6 +74,10 @@ export class NewTaskComponent implements OnInit, AfterViewInit {
 
     ngOnInit(): void {
         this.taskForm = FormGroupInitializer.initFormGroup(this.taskForm, this.task);
+        if (this.taskForm.get('dueAt')?.value !== null) {
+            this.taskForm.get('dueAt')?.setValue(this.taskForm.value.dueAt.slice(0, 10));
+            this.dueAtValue = this.taskForm.get('dueAt')?.value;
+        }
         const prio = this.taskForm.get('prio');
         // Set first radio checked
         if (prio && !prio.value) {