add icons for theme

src/app/shared/gabinete-digital/generic/task-details/task-details.page.ts

@@ -1,5 +1,6 @@
 import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core';
 import { customTask, fullTask } from 'src/app/models/dailyworktask.model';
+import { ThemeService } from 'src/app/services/theme.service'
 
 @Component({
   selector: 'app-task-details',
@@ -18,7 +19,9 @@ export class TaskDetailsPage implements OnInit {
   @Output() goBack = new EventEmitter<any>();
   @Output() viewDocument = new EventEmitter<any>();
   
-  constructor() { }
+  constructor(
+    public ThemeService: ThemeService
+  ) { }
 
   ngOnInit() {
   }