fix: mermaid diagram render (#2027)

* fix: mermaid diagram render

* chore: format

Author: jonas-jonas

src/theme/Mermaid.js

@@ -48,15 +48,16 @@ const Mermaid = ({ chart }) => {
 
   useEffect(() => {
     // https://mermaid.js.org/config/theming.html#diagram-specific-themes
-    mermaid.render(
-      id,
-      `%%{init: {'theme':'${
-        colorMode === "light" ? "neutral" : "dark"
-      }'}}%%\n${chart}`,
-      (svg) => {
+    mermaid
+      .render(
+        id,
+        `%%{init: {'theme':'${
+          colorMode === "light" ? "neutral" : "dark"
+        }'}}%%\n${chart}`,
+      )
+      .then(({ svg }) => {
         setSvg(svg)
-      },
-    )
+      })
   }, [])
 
   return (