Upgrade to Angular 14

frontend/src/app/components/language-selector/language-selector.component.ts

@@ -1,6 +1,6 @@
 import { DOCUMENT } from '@angular/common';
 import { ChangeDetectionStrategy, Component, Inject, OnInit } from '@angular/core';
-import { FormBuilder, FormGroup } from '@angular/forms';
+import { UntypedFormBuilder, UntypedFormGroup } from '@angular/forms';
 import { languages } from '../../app.constants';
 import { LanguageService } from '../../services/language.service';
 
@@ -11,12 +11,12 @@ import { LanguageService } from '../../services/language.service';
   changeDetection: ChangeDetectionStrategy.OnPush
 })
 export class LanguageSelectorComponent implements OnInit {
-  languageForm: FormGroup;
+  languageForm: UntypedFormGroup;
   languages = languages;
 
   constructor(
     @Inject(DOCUMENT) private document: Document,
-    private formBuilder: FormBuilder,
+    private formBuilder: UntypedFormBuilder,
     private languageService: LanguageService,
   ) { }