Replace deprecated Angular directives (*ngFor, *ngIf) with modern Angular template syntax. Remove unused CommonModule imports across components for optimization. Clean up excess spacing and formatting in HTML files.

frontend/src/app/pages/forms/forms.component.html

@@ -1,17 +1,17 @@
 <ng-container>
   <app-header [current_page]="currentPage" height="200px" background_image="/public/img/backgrounds/staff.png"
-              [overlay_gradient]="0.5">
+    [overlay_gradient]="0.5">
     <div class="title" header-content>
       <h1>{{ formTitle }}</h1>
     </div>
   </app-header>
-  <ng-container *ngIf="!type">
-    <ng-container *ngFor="let formType of FormType | keyvalue">
+  @if (!type) {
+    @for (formType of FormType | keyvalue; track formType) {
       <button mat-raised-button (click)="setFormType(formType.value)">
         {{ formType }}
       </button>
-    </ng-container>
-  </ng-container>
+    }
+  }
   <div>
     <ng-content select="[form-content]"></ng-content>
   </div>