[ADF-3237] Change and remove form from a task (#3597)

* button added for task standalone

* rebase fixed

* review fix

* test added & fixes

* refresh task details

* change and remove form added

* localize & documentation work

* tests added

* tests fixes

* tests fixes

lib/process-services/task-list/components/task-standalone.component.html

@@ -1,4 +1,4 @@
-<mat-card class="adf-message-card" *ngIf="!showAttachForm">
+<mat-card class="adf-message-card">
     <mat-card-content>
         <div class="adf-no-form-message-container">
             <div class="adf-no-form-message-list">
@@ -25,9 +25,3 @@
         </div>
     </mat-card-actions>
 </mat-card>
-
-<adf-attach-form *ngIf="showAttachForm"
-                 [taskId]="taskId"
-                 (cancelAttachForm)="onCancelAttachForm()"
-                 (completeAttachForm)="onCompleteAttachForm()">
-</adf-attach-form>