[BUG] - no customscrollbar shown when using a dynamic component

[AlexanderGoerlich]

Do not work:

`@import "~ngx-customscrollbar/scss/common";
@import "~ngx-customscrollbar/scss/ngx-customscrollbars.theme";

$orangeScrollbars: (
thumbBorderRadius: 2px,
thumbBackground: orange,
trackBackground: rgb(54, 54, 54),
trackSize: 5px
);

:host {
::ng-deep {

@include ngxCustomScrollbarsTheme($orangeScrollbars);

.scrollWrapper {
    display: flex;
    flex-direction: row;
    height: 300px;
    overflow: hidden;

  .scrollView {
    flex: 1;
    overflow-y: auto;
  }
}

....
`