no search, sort and filter options if no question asked

src/app/components/moderator/moderator-comment-list/moderator-comment-list.component.html

 <div fxLayout="row"
-     *ngIf="comments.length > 0"
+     *ngIf="comments.length > 1"
      [ngClass]="{'search-container' : !scroll, 'search-container-fixed' : scroll}"
      (window:scroll)="checkScroll()"
      fxLayoutAlign="center">

src/app/components/shared/comment-list/comment-list.component.html

 <div fxLayout="row"
-     *ngIf="comments.length > 0"
+     *ngIf="comments.length > 1"
      [ngClass]="{'search-container' : !scroll, 'search-container-fixed' : scroll}"
      (window:scroll)="checkScroll()"
      fxLayoutAlign="center">