fix(demo): remove global config

Author: manzapanza

src/app/app.component.html

@@ -1,6 +1,7 @@
 <div class="container">
   <h1>Ngx Bootstrap Dialog</h1>
   <h2>{{ environment.env.npm_package_version }}</h2>
+
   <div class="row">
     <div class="col">
       <button class="btn btn-primary" (click)="openDialogAlert()">

src/app/app.module.ts

@@ -1,26 +1,12 @@
 import { NgModule } from '@angular/core';
 import { BrowserModule } from '@angular/platform-browser';
 
-import {
-  NGX_BOOTSTRAP_ALERT_DEFAULT_OPTIONS,
-  NGX_BOOTSTRAP_CONFIRM_DEFAULT_OPTIONS,
-} from './../../projects/ngx-bootstrap-dialog/src/lib/ngx-bootstrap-dialog.config';
 import { NgxBootstrapDialogModule } from './../../projects/ngx-bootstrap-dialog/src/lib/ngx-bootstrap-dialog.module';
 import { AppComponent } from './app.component';
 
 @NgModule({
   declarations: [AppComponent],
   imports: [BrowserModule, NgxBootstrapDialogModule],
-  providers: [
-    {
-      provide: NGX_BOOTSTRAP_ALERT_DEFAULT_OPTIONS,
-      useValue: { confirmButtonClass: 'btn btn-danger' },
-    },
-    {
-      provide: NGX_BOOTSTRAP_CONFIRM_DEFAULT_OPTIONS,
-      useValue: { confirmButtonText: 'CONFIRM' },
-    },
-  ],
   bootstrap: [AppComponent],
 })
 export class AppModule {}