fix: load JS for transformer plugins

Author: gera2ld

mkdocs_markmap/static_files/mkdocs-markmap.js

@@ -3,7 +3,12 @@
     const assets = transformer.getAssets();
     const loading = Promise.all([
         assets.styles && markmap.loadCSS(assets.styles),
-        assets.scripts && markmap.loadJS(assets.scripts),
+        markmap.loadJS([
+            ...transformer.plugins.flatMap(
+                (plugin) => plugin.config?.preloadScripts || []
+            ),
+            ...(assets.scripts || []),
+        ]),
     ]);
 
     function parseData(content) {