upgrade ng 11 to 12: Correct types errors

- I have no idea what I corrected. This has probably broke the code

src/app/features/administration/form/date/list/time/time-list.component.ts

@@ -15,7 +15,7 @@ export class TimeListComponent implements OnInit {
 	@Input()
 	public timeSlices: TimeSlices[];
 	@Input()
-	public prefix_choice_id = '';
+	public prefix_choice_id: number;
 
 	constructor(
 		@Inject(DOCUMENT) private document: any,

src/app/features/administration/form/steps/step-three/step-three.component.html

@@ -30,7 +30,7 @@
 			<!--			[minDate]="minDate"-->
 			<p-calendar
 				[(ngModel)]="pollService.calendar"
-				firstDayOfWeek="1"
+				[firstDayOfWeek]="1"
 				selectionMode="multiple"
 				inputId="multiple"
 				[showButtonBar]="true"

src/app/features/consultation/poll-results-dinum/poll-results-dinum.component.html

@@ -1,15 +1,17 @@
 <div class="text-choices rounded-block" *ngIf="poll.kind == 'text'">
-	<div class="text-choice" *ngFor="let choice of poll.choices_grouped; index as ii">
+	<div class="text-choice" *ngFor="let choice_groupe of poll.choices_grouped; index as ii">
 		<div class="choice-label">
-			{{ choice.date_string }}
+			{{ choice_groupe.date_string }}
+		</div>
+		<div *ngFor="let choice of choice_groupe.choices">
+			<app-choice-table [choice]="choice" [detailledDisplay]="detailledDisplay"></app-choice-table>
 		</div>
-		<app-choice-table [choice]="choice" [detailledDisplay]="detailledDisplay"></app-choice-table>
 	</div>
 </div>
 <div class="date-choices" *ngIf="poll.kind == 'date'">
 	<div class="rounded-block" *ngFor="let group of poll.choices_grouped">
 		<div class="date-label">
-			{{ showAsDate(group.date_string) | date: 'fullDate':'Europe/Paris' }}
+			{{ showAsDate(group.date_string) | date : 'fullDate' : 'Europe/Paris' }}
 		</div>
 		<div class="list-of-choices">
 			<div class="date-choices">