chore: scrap chat feature

See https://github.com/users/EdricChan03/projects/3/views/2?pane=issue&itemId=34138605&filterQuery=chat for more info

Author: EdricChan03

src/app/app-routing.module.ts

@@ -2,9 +2,6 @@ import { NgModule } from '@angular/core';
 import { Route, RouterModule } from '@angular/router';
 import { AboutComponent } from './about/about.component';
 import { AppDownloadsComponent } from './appdownloads/appdownloads.component';
-import { ChatExploreComponent } from './chats/chat-explore/chat-explore.component';
-import { ChatViewerComponent } from './chats/chat-viewer/chat-viewer.component';
-import { ChatsComponent } from './chats/chats.component';
 import { DashboardComponent } from './dashboard/dashboard.component';
 import { TipsComponent } from './tips/tips.component';
 import { TodoArchivedComponent, TodoDashboardComponent, TodoHomeComponent, TodoProjectComponent } from './todo';
@@ -27,10 +24,6 @@ const redirectRoutes: Route[] = [
 const routes: Route[] = [
   // About StudyBuddy
   { path: 'about', component: AboutComponent },
-  // Chatrooms! Coming soon.
-  { path: 'chats', component: ChatsComponent, canActivate: [AuthGuard] },
-  { path: 'chats/explore', component: ChatExploreComponent, canActivate: [AuthGuard] },
-  { path: 'chats/:id', component: ChatViewerComponent, canActivate: [AuthGuard] },
   // Dashboard
   { path: 'dashboard', component: DashboardComponent, canActivate: [AuthGuard] },
   // Downloads for the app. Currently a bit empty

src/app/app.component.ts

@@ -44,11 +44,6 @@ export class AppComponent implements OnInit {
       link: 'tips',
       title: 'Tips',
       icon: 'lightbulb_outline'
-    },
-    {
-      link: 'chats',
-      title: 'Chats',
-      icon: 'chat'
     }
   ];
   otherLinks: SidenavLink[] = [

src/app/app.module.ts

@@ -26,9 +26,6 @@ import { AppRoutingModule } from './app-routing.module';
 import { AppComponent } from './app.component';
 import { AppDownloadsComponent } from './appdownloads/appdownloads.component';
 import { AuthService } from './auth.service';
-import { ChatExploreComponent } from './chats/chat-explore/chat-explore.component';
-import { ChatViewerComponent } from './chats/chat-viewer/chat-viewer.component';
-import { ChatsComponent } from './chats/chats.component';
 import { ComponentsModule } from './components/components.module';
 import { DashboardComponent } from './dashboard/dashboard.component';
 import { DialogsModule } from './dialogs/dialogs.module';
@@ -65,9 +62,6 @@ function minItemsValidationMessage(err, field: FormlyFieldConfig) {
     TodoDashboardComponent,
     AboutComponent,
     SearchInputComponent,
-    ChatsComponent,
-    ChatExploreComponent,
-    ChatViewerComponent,
     DashboardComponent,
     TodoOutletComponent,
     UserViewerComponent