Fix percent-encoding in VFS paths and implement symlink_metadata for WebDAV MOVE

src/vfs.rs

@@ -498,6 +498,10 @@ impl DavFileSystem for SanctumFs {
         })
     }
 
+    fn symlink_metadata<'a>(&'a self, path: &'a DavPath) -> FsFuture<'a, Box<dyn DavMetaData>> {
+        self.metadata(path)
+    }
+
     fn create_dir<'a>(&'a self, path: &'a DavPath) -> FsFuture<'a, ()> {
         Box::pin(async move {
             let path_str = Self::path_to_str(path);