Move to libs

libs/angular/src/directives/fallback-src.directive.ts

@@ -0,0 +1,14 @@
+import { Directive, ElementRef, HostListener, Input } from "@angular/core";
+
+@Directive({
+  selector: "[appFallbackSrc]",
+})
+export class FallbackSrcDirective {
+  @Input("appFallbackSrc") appFallbackSrc: string;
+
+  constructor(private el: ElementRef) {}
+
+  @HostListener("error") onError() {
+    this.el.nativeElement.src = this.appFallbackSrc;
+  }
+}