Fix General tab rendering by adding formGroup wrapper

- Wrapped GeneralTabComponent in a div with [formGroup]="assignedSiteForm" directive
- This ensures form context is available to formControlName directives in the child component
- Matches pattern used by other tabs (Plan hours, Auto break, etc.) which also use wrapper divs
- Fixes issue where General tab content was not rendering due to missing form context

Co-authored-by: renemadsen <[email protected]>

Author: Copilot

eform-client/src/app/plugins/modules/time-planning-pn/components/plannings/time-planning-actions/assigned-site/assigned-site-dialog.component.html

@@ -5,12 +5,14 @@
     [formGroup]="assignedSiteForm"
   >
     <mat-tab label="{{'General' | translate }}" >
-      <app-assigned-site-general-tab
-        [data]="data"
-        [assignedSiteForm]="assignedSiteForm"
-        [isFirstUser]="isFirstUser"
-        [isAdmin]="isAdmin">
-      </app-assigned-site-general-tab>
+      <div [formGroup]="assignedSiteForm">
+        <app-assigned-site-general-tab
+          [data]="data"
+          [assignedSiteForm]="assignedSiteForm"
+          [isFirstUser]="isFirstUser"
+          [isAdmin]="isAdmin">
+        </app-assigned-site-general-tab>
+      </div>
     </mat-tab>
     <mat-tab label="{{'Plan hours' | translate }} "
              *ngIf="data.useOnlyPlanHours && !data.useGoogleSheetAsDefault && isFirstUser">