fix(calendar-web): fix title expression rendered value

Author: rahmanunver

packages/pluggableWidgets/calendar-web/CHANGELOG.md

@@ -30,6 +30,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - Fixed error when selecting a default view that was not enabled in the toolbar items configuration.
 
+- Fixed title expression not rendering the correct value.
+
 ### Breaking changes
 
 - Custom view buttons and their captions are now set inside the Custom top bar views configuration.

packages/pluggableWidgets/calendar-web/src/helpers/CalendarPropsBuilder.ts

@@ -116,7 +116,7 @@ export class CalendarPropsBuilder {
         if (this.props.titleType === "attribute" && this.props.titleAttribute) {
             return this.props.titleAttribute.get(item).value ?? "";
         } else if (this.props.titleType === "expression" && this.props.titleExpression) {
-            return String(this.props.titleExpression.get(item) ?? "");
+            return this.props.titleExpression.get(item)?.value ?? "";
         } else {
             return "Untitled Event";
         }