create loading screen component

src/app/components/loading-screen/loading-screen.component.html

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+<p>loading-screen works!</p>

src/app/components/loading-screen/loading-screen.component.spec.ts

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+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { LoadingScreenComponent } from './loading-screen.component';
+
+describe('LoadingScreenComponent', () => {
+  let component: LoadingScreenComponent;
+  let fixture: ComponentFixture<LoadingScreenComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ LoadingScreenComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(LoadingScreenComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/components/loading-screen/loading-screen.component.ts

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+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  templateUrl: './loading-screen.component.html',
+  styleUrls: ['./loading-screen.component.scss']
+})
+export class LoadingScreenComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+}