build: update dependencies

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

Fixes #44

src/app/core/core.module.ts

@@ -3,7 +3,6 @@ import { CommonModule } from '@angular/common';
 import { HTTP_INTERCEPTORS, HttpClient, HttpClientModule } from '@angular/common/http';
 import { RouteReuseStrategy, RouterModule } from '@angular/router';
 import { TranslateModule } from '@ngx-translate/core';
-import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
 
 import { ShellComponent } from './shell/shell.component';
 import { HeaderComponent } from './shell/header/header.component';
@@ -22,7 +21,6 @@ import { CacheInterceptor } from './http/cache.interceptor';
     CommonModule,
     HttpClientModule,
     TranslateModule,
-    NgbModule,
     RouterModule
   ],
 

src/app/core/http/api-prefix.interceptor.ts

@@ -2,7 +2,7 @@ import { Injectable } from '@angular/core';
 import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest } from '@angular/common/http';
 import { Observable } from 'rxjs';
 
-import { environment } from '@env/environment';
+import { environment } from '../../../environments/environment';
 
 /**
  * Prefixes all requests with `environment.serverUrl`.

src/app/core/http/error-handler.interceptor.ts

@@ -3,7 +3,7 @@ import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest } from '@angular/c
 import { Observable } from 'rxjs';
 import { catchError } from 'rxjs/operators';
 
-import { environment } from '@env/environment';
+import { environment } from '../../../environments/environment';
 import { Logger } from '../logger.service';
 
 const log = new Logger('ErrorHandlerInterceptor');