Improve responsiveness and add doc to task

src/app/pages/gabinete-digital/event-list/approve-event/approve-event.page.html

@@ -1,9 +1,9 @@
 <ion-header class="ion-no-border">
-  <div *ngIf="loadedEvent" class="header-content">
+  <div *ngIf="loadedEvent" class="header-content d-flex justify-between">
     <div class="header-icon-left">
       <ion-icon (click)="close()" src="assets/images/icons-arrow-arrow-left.svg"></ion-icon>
     </div>
-    <div class="header-title">
+    <div class="header-title flex-grow-1">
       <label>{{loadedEvent.workflowInstanceDataFields.Subject}}</label>
     </div>
     <div class="header-icon-right">
@@ -55,7 +55,7 @@
     </div>
   </div>
   <div class="line"></div>
-  <div class="middle-content" *ngIf="loadedEvent">
+  <div class="middle-content overflow-y-auto" *ngIf="loadedEvent">
     <h5>Intervenientes</h5>
     <ion-item>
       <ion-label>