build: update dependencies

Update dependencies and configure the app for angular material and flex
layout.

Fixes #44

src/app/login/login.component.ts

@@ -3,8 +3,8 @@ import { Router } from '@angular/router';
 import { FormGroup, FormBuilder, Validators } from '@angular/forms';
 import { finalize } from 'rxjs/operators';
 
-import { environment } from '@env/environment';
-import { Logger, I18nService, AuthenticationService } from '@app/core';
+import { environment } from '../../environments/environment';
+import { Logger, I18nService, AuthenticationService } from '../../app/core';
 
 const log = new Logger('Login');