build: update dependencies

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

Fixes #44

src/app/login/login.module.ts

@@ -2,7 +2,6 @@ import { NgModule } from '@angular/core';
 import { CommonModule } from '@angular/common';
 import { ReactiveFormsModule } from '@angular/forms';
 import { TranslateModule } from '@ngx-translate/core';
-import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
 
 import { LoginRoutingModule } from './login-routing.module';
 import { LoginComponent } from './login.component';
@@ -12,7 +11,6 @@ import { LoginComponent } from './login.component';
     CommonModule,
     ReactiveFormsModule,
     TranslateModule,
-    NgbModule,
     LoginRoutingModule
   ],
   declarations: [