Test angular

frontend/src/app/components/header/header.module.ts

@@ -0,0 +1,12 @@
+import { NgModule } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import { HeaderComponent } from './header.component';
+import { MatToolbarModule } from '@angular/material/toolbar';
+import { MatButtonModule } from '@angular/material/button';
+
+@NgModule({
+  imports: [CommonModule, MatToolbarModule, MatButtonModule],
+  declarations: [HeaderComponent],
+  exports: [HeaderComponent],
+})
+export class HeaderModule {}