DSC-2715 Test fix

(cherry picked from commit 337d4a4e9cf92ee70ca03b36c5c8e35087fa2a50)

Author: Mattia Vianelli

src/app/submission/submission-legend/submission-legend.component.spec.ts

@@ -1,4 +1,5 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { TranslateModule } from '@ngx-translate/core';
 
 import { SubmissionLegendComponent } from './submission-legend.component';
 
@@ -8,6 +9,9 @@ describe('SubmissionLegendComponent', () => {
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
+      imports: [
+        TranslateModule.forRoot()
+      ],
       declarations: [ SubmissionLegendComponent ]
     })
     .compileComponents();