improve style of events to approve list in desktop

src/app/shared/agenda/approve-event/approve-event.component.html

@@ -1,4 +1,4 @@
-<ion-header hidden class="ion-no-border px-20">
+<!-- <ion-header hidden class="ion-no-border px-20">
   <div class="header-content d-flex justify-space-between">
     <div class="header-icon-left">
       <ion-icon (click)="close()" src="assets/images/icons-arrow-arrow-left.svg"></ion-icon>
@@ -10,7 +10,7 @@
       <ion-icon (click)="notImplemented()" src="assets/images/icons-edit.svg"></ion-icon>
     </div>
   </div>
-</ion-header>
+</ion-header> -->
 <ion-menu autoHide="false" side="end" content-id="main-content">
   <ion-header>
     <ion-toolbar translucent>