fix: Return empty string for undefined template values (#5267)

Author: anshika-ux

js/utils/utils.js

@@ -143,7 +143,7 @@ let format = (str, data) => {
             x = x[v];
         });
 
-        return x;
+        return x === undefined ? "" : x;
     });
 
     return str.replace(/{_([a-zA-Z0-9]+)}/g, (match, item) => {