rich-text-editor.component.ts: Removed "backgroundColor" from toolbarHiddenButtons | Do not show (x) close to clear the input when editable is false.

dmp-frontend/src/app/library/rich-text-editor/rich-text-editor.component.ts

@@ -10,7 +10,7 @@ import {FormControl} from "@angular/forms";
 							[config]="editorConfig" [formControlName]="controlName"
 							placeholder="{{(placeholder? (placeholder | translate) : '') + (required ? ' *': '')}}"
 							(paste)="pasteWithoutFormatting($event)"></angular-editor>
-			<mat-icon *ngIf="formInput.value" (click)="formInput.patchValue('')" class="clear">close</mat-icon>
+			<mat-icon *ngIf="formInput.value && editable" (click)="formInput.patchValue('')" class="clear">close</mat-icon>
 		</div>
 	`,
 	styleUrls: ['./rich-text-editor.component.scss']
@@ -56,7 +56,7 @@ export class RichTextEditorComponent {
 			],
 			[
 				'fontSize',
-				'backgroundColor',
+				// 'backgroundColor',
 				// 'customClasses',
 				'insertImage',
 				'insertVideo',