refactor: remove global header

src/app/app.html

@@ -1,4 +1 @@
-<div class="bar-container">
-    <h1>{{strings.contactList|titlecase}}</h1>
-</div>
 <router-outlet></router-outlet>

src/app/app.scss

@@ -1,3 +0,0 @@
-.bar-container {
-    background-color: var(--primaryDark);
-}

src/app/app.ts

@@ -1,13 +1,11 @@
-import { Component, inject } from '@angular/core';
+import { Component } from '@angular/core';
 import { RouterOutlet } from '@angular/router';
-import { STRINGS_INJECTOR } from './app.config';
-import { TitleCasePipe } from '@angular/common';
 @Component({
   selector: 'app-root',
-  imports: [RouterOutlet, TitleCasePipe],
+  imports: [RouterOutlet],
   templateUrl: './app.html',
   styleUrl: './app.scss',
 })
 export class App {
-  protected readonly strings = inject(STRINGS_INJECTOR);
+  
 }