fix: add same fix to legacy angular projects

Author: wnvko

packages/igx-templates/igx-ts-legacy/category-chart/default/files/src/app/__path__/__filePrefix__.component.spec.ts

@@ -10,7 +10,8 @@ describe('<%=ClassName%>Component', () => {
   beforeEach(waitForAsync(() => {
     TestBed.configureTestingModule({
       declarations: [<%=ClassName%>Component],
-      imports: [FormsModule, IgxCategoryChartModule]
+      imports: [FormsModule, IgxCategoryChartModule],
+      teardown: { destroyAfterEach: false }
     })
       .compileComponents();
   }));

packages/igx-templates/igx-ts-legacy/financial-chart/default/files/src/app/__path__/__filePrefix__.component.spec.ts

@@ -9,7 +9,8 @@ describe('<%=ClassName%>Component', () => {
   beforeEach(waitForAsync(() => {
     TestBed.configureTestingModule({
       declarations: [<%=ClassName%>Component],
-      imports: [IgxFinancialChartModule]
+      imports: [IgxFinancialChartModule],
+      teardown: { destroyAfterEach: false }
     })
       .compileComponents();
   }));