How can I pass data array in list in angular html dynamically

Demo You need just one loop

 <div class="sidebar" >
     <h4>Approvals</h4>
     <ul  *ngFor="let q of obj">
        <li>
            <a href="#"><img class="sideico" [src]="q.icon | safe : 'url'" />{{q.element}}</a>  
        </li>
    </ul>
           
</div>

and use custom safe pipe to bind

import { Pipe, PipeTransform } from '@angular/core';
import { DomSanitizer, SafeHtml, SafeStyle, SafeScript, SafeUrl, SafeResourceUrl } from '@angular/platform-browser';

@Pipe({
  name: 'safe'
})
export class SafePipe implements PipeTransform {

  constructor(protected sanitizer: DomSanitizer) {}
 
 public transform(value: any, type: string): SafeHtml | SafeStyle | SafeScript | SafeUrl | SafeResourceUrl {
    switch (type) {
            case 'html': return this.sanitizer.bypassSecurityTrustHtml(value);
            case 'style': return this.sanitizer.bypassSecurityTrustStyle(value);
            case 'script': return this.sanitizer.bypassSecurityTrustScript(value);
            case 'url': return this.sanitizer.bypassSecurityTrustUrl(value);
            case 'resourceUrl': return this.sanitizer.bypassSecurityTrustResourceUrl(value);
            default: throw new Error(`Invalid safe type specified: ${type}`);
        }
  }
}