contact form implementation

src/app/app.module.ts

@@ -1,6 +1,7 @@
 import { NgModule, CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
 import { BrowserModule } from '@angular/platform-browser';
 import { HttpClientModule } from '@angular/common/http';
+import { FormsModule } from '@angular/forms';
 
 import { AppComponent } from './app.component';
 import { ContactSidebarComponent } from './contact-sidebar/contact-sidebar.component';
@@ -29,7 +30,8 @@ import { SpinnerComponent } from './spinner/spinner.component';
   imports: [
     BrowserModule,
     HttpClientModule,
-    AppRoutingModule
+    AppRoutingModule,
+    FormsModule
   ],
   schemas: [CUSTOM_ELEMENTS_SCHEMA],
   providers: [httpInterceptorProviders],