🔒️(frontend) fix an XSS vulnerability on the recording page

An XSS vulnerability was identified by an open-source contributor. While the
impact was limited, only a room owner could inject the content and then view the
recording page, it is important to address, especially before introducing
multi-owner support.

CHANGELOG.md

@@ -8,6 +8,10 @@ and this project adheres to
 
 ## [Unreleased]
 
+### Fixed
+
+- 🔒️(frontend) fix an XSS vulnerability on the recording page #911
+
 ## [1.4.0] - 2026-01-25
 
 ### Added