fix: improve current directory name retrieval in FileTreeHeader

- Enhanced the getCurrentDirectoryName function to support both Unix (/) and Windows (\) path separators for better compatibility.
- Updated logic to split the currentFolder string using a regular expression, ensuring accurate extraction of the directory name.

Author: milisp

src/components/filetree/FileTreeHeader.tsx

@@ -29,7 +29,9 @@ export function FileTreeHeader({
   }, [showSearchInput]);
   const getCurrentDirectoryName = () => {
     if (!currentFolder) return "Home";
-    return currentFolder.split("/").pop() || currentFolder;
+    // Support both Unix (/) and Windows (\) path separators
+    const parts = currentFolder.split(/[/\\]+/);
+    return parts.pop() || currentFolder;
   };
 
   return (