Implement sidebar component and signing component

src/app/app.module.ts

@@ -3,7 +3,7 @@ import {BrowserModule} from '@angular/platform-browser';
 
 import {AppRoutingModule} from './app-routing.module';
 import {AppComponent} from './components/app.component';
-import {HelloComponent} from './components/hello/hello.component';
+import {SigningComponent} from './components/signing/signing.component';
 import {BASE_PATH} from '../gen';
 import {environment} from '../environments/environment';
 import {HTTP_INTERCEPTORS, provideHttpClient, withInterceptorsFromDi} from '@angular/common/http';
@@ -11,12 +11,15 @@ import { LoginComponent } from './components/login/login.component';
 import {FormsModule} from '@angular/forms';
 import {RequestInterceptor} from './interceptors/request.interceptor';
 import {UnauthorizedInterceptor} from './interceptors/unauthorizedResponseInterceptor';
+import {SigningSidebarComponent} from './components/signing/signing-sidebar/signing-sidebar.component';
 
 @NgModule({
   declarations: [
     AppComponent,
-    HelloComponent,
-    LoginComponent
+    SigningComponent,
+    LoginComponent,
+    SigningSidebarComponent,
+    SigningSidebarComponent
   ],
   imports: [
     BrowserModule,