Make sure a close event doesn't close more than one dialog

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@tp/tp-dialog",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "",
   "main": "tp-dialog.js",
   "scripts": {

tp-dialog.js

@@ -123,7 +123,12 @@ class TpDialog extends EventHelpers(LitElement) {
     }
   }
 
-  close() {
+  close(e) {
+    if (e) {
+      e.stopPropagation();
+      e.preventDefault();
+    }
+
     this.dialog.close();
     this.dispatchEvent(new CustomEvent('closed', { detail: null, bubbles: true, composed: true }));
     this.open = false;