feat: add app shell (angular-material)

Add app shell built using angular-material and flex-layout. Refractor
code due to configuration changes.

Fixes #52

src/app/home/home.module.ts

@@ -1,10 +1,10 @@
 import { NgModule } from '@angular/core';
 import { CommonModule } from '@angular/common';
+
 import { TranslateModule } from '@ngx-translate/core';
 import { NgxChartsModule } from '@swimlane/ngx-charts';
 
-import { CoreModule } from '../../app/core';
-import { SharedModule } from '../../app/shared';
+import { SharedModule } from '../shared';
 import { HomeRoutingModule } from './home-routing.module';
 import { HomeComponent } from './home.component';
 import { QuoteService } from './quote.service';
@@ -15,14 +15,13 @@ import { DashboardComponent } from './dashboard/dashboard.component';
     CommonModule,
     TranslateModule,
     NgxChartsModule,
-    CoreModule,
     SharedModule,
     HomeRoutingModule
   ],
   declarations: [
     HomeComponent,
     DashboardComponent
-],
+  ],
   providers: [
     QuoteService
   ]