Chore: Moved from Untyped to Stongly Typed forms.

overlord/src/app/cost-centre/cost-centre-detail/cost-centre-detail.component.ts

@@ -1,5 +1,5 @@
 import { AfterViewInit, Component, ElementRef, OnInit, ViewChild } from '@angular/core';
-import { UntypedFormBuilder, UntypedFormGroup } from '@angular/forms';
+import { FormControl, FormGroup } from '@angular/forms';
 import { ActivatedRoute, Router } from '@angular/router';
 
 import { CostCentre } from '../../core/cost-centre';
@@ -13,18 +13,20 @@ import { CostCentreService } from '../cost-centre.service';
 })
 export class CostCentreDetailComponent implements OnInit, AfterViewInit {
   @ViewChild('nameElement', { static: true }) nameElement?: ElementRef;
-  form: UntypedFormGroup;
+  form: FormGroup<{
+    name: FormControl<string | null>;
+  }>;
+
   item: CostCentre = new CostCentre();
 
   constructor(
     private route: ActivatedRoute,
     private router: Router,
-    private fb: UntypedFormBuilder,
     private toaster: ToasterService,
     private ser: CostCentreService,
   ) {
-    this.form = this.fb.group({
-      name: '',
+    this.form = new FormGroup({
+      name: new FormControl<string | null>(null),
     });
   }
 
@@ -65,7 +67,7 @@ export class CostCentreDetailComponent implements OnInit, AfterViewInit {
 
   getItem(): CostCentre {
     const formModel = this.form.value;
-    this.item.name = formModel.name;
+    this.item.name = formModel.name!;
     return this.item;
   }
 }

overlord/src/app/cost-centre/cost-centre.service.ts

@@ -1,4 +1,4 @@
-import { HttpClient, HttpHeaders } from '@angular/common/http';
+import { HttpClient } from '@angular/common/http';
 import { Injectable } from '@angular/core';
 import { Observable } from 'rxjs/internal/Observable';
 import { catchError } from 'rxjs/operators';