feature: unused token removed
-import { APP_INITIALIZER, NgModule, InjectionToken, ErrorHandler } from '@angular/core';
+import { APP_INITIALIZER, NgModule, InjectionToken } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { ReactiveFormsModule, FormsModule } from '@angular/forms';
import { DynamicFormsCoreModule } from '@ng-dynamic-forms/core';
