upgrade angular12

src/app/app.module.ts

@@ -6,7 +6,7 @@ import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import { FormsModule, ReactiveFormsModule } from '@angular/forms';
 import { HttpClientModule, HttpInterceptor, HttpHandler, HttpRequest, HTTP_INTERCEPTORS } from '@angular/common/http';
 import { MaterialModule } from './material/material.module';
-import { QRCodeModule } from 'angularx-qrcode';
+import { QrCodeModule } from 'ng-qrcode';
 import { DatePipe } from '@angular/common';
 
 
@@ -120,7 +120,7 @@ export class XhrInterceptor implements HttpInterceptor {
     HttpClientModule,
     FormsModule,
     ReactiveFormsModule,
-    QRCodeModule,
+    QrCodeModule,
   ],
   exports: [ MaterialModule ],
   providers: [ { provide: APP_INITIALIZER, useFactory: init_app, deps: [ I18nService ], multi: true }, { provide: HTTP_INTERCEPTORS, useClass: XhrInterceptor, multi: true }, DatePipe ],