fix(ui): preserve SVG tags in DOMPurify config for KaTeX math rendering (#25866)

packages/ui/src/components/markdown.tsx

@@ -33,6 +33,8 @@ const config = {
   SANITIZE_NAMED_PROPS: true,
   FORBID_TAGS: ["style"],
   FORBID_CONTENTS: ["style", "script"],
+  ADD_TAGS: ["svg", "path"],
+  ADD_ATTR: ["d", "viewBox", "preserveAspectRatio", "xmlns"],
 }
 
 const iconPaths = {