Import escape function locally from html-escaper

lib/utils/htmlEscaper.js

@@ -0,0 +1,23 @@
+const { replace } = ''
+
+// escape
+const es = /&(?:amp|#38|lt|#60|gt|#62|apos|#39|quot|#34);/g
+const ca = /[&<>'"]/g
+
+const esca = {
+  '&': '&amp;',
+  '<': '&lt;',
+  '>': '&gt;',
+  "'": '&#39;',
+  '"': '&quot;',
+}
+const pe = (m) => esca[m]
+
+/**
+ * Safely escape HTML entities such as `&`, `<`, `>`, `"`, and `'`.
+ * @param {string} es the input to safely escape
+ * @returns {string} the escaped input, and it **throws** an error if
+ *  the input type is unexpected, except for boolean and numbers,
+ *  converted as string.
+ */
+export const escape = (es) => replace.call(es, ca, pe)