bootstrap 5 WIP (#7891)

New standard theme that follows your chosen terminal colors, Bootstrap 5 & Angular 15 upgrade

tabby-web-demo/src/index.ts

@@ -1,5 +1,5 @@
 import { NgModule } from '@angular/core'
-import { BrowserModule } from '@angular/platform-browser'
+// import { BrowserModule } from '@angular/platform-browser'
 import { FormsModule } from '@angular/forms'
 import { NgbModule } from '@ng-bootstrap/ng-bootstrap'
 
@@ -12,7 +12,7 @@ import { DemoProfilesService } from './profiles'
 /** @hidden */
 @NgModule({
     imports: [
-        BrowserModule,
+        // BrowserModule,
         FormsModule,
         NgbModule,
         TabbyCorePlugin,
@@ -21,9 +21,6 @@ import { DemoProfilesService } from './profiles'
     providers: [
         { provide: ProfileProvider, useClass: DemoProfilesService, multi: true },
     ],
-    entryComponents: [
-        DemoTerminalTabComponent,
-    ],
     declarations: [
         DemoTerminalTabComponent,
     ],