fix(rich-text): corrige compartilhamento do ngModel

Corrige o compartilhamento do ngModel quando tem mais do que um po-rich-text por página.

Fixes: DTHFUI-4248

Author: alinelariguet

projects/ui/src/lib/components/po-field/po-rich-text/po-rich-text-body/po-rich-text-body.component.spec.ts

@@ -6,6 +6,7 @@ import * as UtilsFunction from '../../../../utils/util';
 import { configureTestSuite } from './../../../../util-test/util-expect.spec';
 
 import { PoRichTextBodyComponent } from './po-rich-text-body.component';
+import { PoRichTextService } from '../po-rich-text.service';
 
 describe('PoRichTextBodyComponent:', () => {
   let component: PoRichTextBodyComponent;
@@ -14,7 +15,8 @@ describe('PoRichTextBodyComponent:', () => {
 
   configureTestSuite(() => {
     TestBed.configureTestingModule({
-      declarations: [PoRichTextBodyComponent]
+      declarations: [PoRichTextBodyComponent],
+      providers: [PoRichTextService]
     });
   });
 

projects/ui/src/lib/components/po-field/po-rich-text/po-rich-text.component.ts

@@ -19,6 +19,9 @@ const providers = [
     // tslint:disable-next-line
     useExisting: forwardRef(() => PoRichTextComponent),
     multi: true
+  },
+  {
+    provide: PoRichTextService
   }
 ];
 

projects/ui/src/lib/components/po-field/po-rich-text/po-rich-text.service.ts

@@ -2,9 +2,7 @@ import { Injectable } from '@angular/core';
 
 import { Subject } from 'rxjs';
 
-@Injectable({
-  providedIn: 'root'
-})
+@Injectable()
 export class PoRichTextService {
   private model = new Subject<string>();