Correct merge resolution to enable dismissal of pharos toast (#720)

* chore(release): re-add dropped code from bad merge of PR #472

* chore(release): correct merge of PR #481 and reverts recent "corrections" when reapplying #472

* chore(release): add dropped code from toast

* chore(release): re-add js file extension

* chore(release): re-add return element focus call

* chore(release): revert file extensions once more

* chore(release): add changeset

---------

Co-authored-by: Yanni Mouzakis <yanni.mouzakis@ithaka.org>

.changeset/happy-hounds-peel.md

@@ -0,0 +1,5 @@
+---
+"@ithaka/pharos": patch
+---
+
+Re-add change to toast dismissal from PR #475 that was dropped in a tricky merge resolution

packages/pharos/src/components/toast/pharos-toaster.ts

@@ -159,10 +159,7 @@ export class PharosToaster extends ScopedRegistryMixin(PharosElement) {
 
   private _closeToast(event: CustomEvent): void {
     const { id } = <ToastCloseDetail>(<CustomEvent>event).detail || {};
-    const toast = document.getElementById(this._getToastID(id));
-    if (toast) {
-      this.removeChild(toast);
-    }
+    this._toasts = this._toasts.filter((toast) => toast.id !== id);
     this._focusOnReturnElements(this.returnElements);
   }