refactor(dev): use es6-string-html for templates

src/public/app/widgets/dialogs/protected_session_password.ts

@@ -4,7 +4,7 @@ import utils from "../../services/utils.js";
 import BasicWidget from "../basic_widget.js";
 import { Modal } from "bootstrap";
 
-const TPL = `
+const TPL = /*html*/`
 <div class="protected-session-password-dialog modal mx-auto" data-backdrop="false" tabindex="-1" role="dialog">
     <div class="modal-dialog modal-md" role="document">
         <div class="modal-content">