Set up key backup using non-deprecated APIs (#12005)

playwright/pages/ElementAppPage.ts

@@ -50,6 +50,19 @@ export class ElementAppPage {
         return this.settings.closeDialog();
     }
 
+    public async getClipboard(): Promise<string> {
+        return await this.page.evaluate(() => navigator.clipboard.readText());
+    }
+
+    /**
+     * Find an open dialog by its title
+     */
+    public async getDialogByTitle(title: string, timeout = 5000): Promise<Locator> {
+        const dialog = this.page.locator(".mx_Dialog");
+        await dialog.getByRole("heading", { name: title }).waitFor({ timeout });
+        return dialog;
+    }
+
     /**
      * Opens the given room by name. The room must be visible in the
      * room list, but the room list may be folded horizontally, and the