Use built-in ts function to get node at cursor position

lua/orgmode/utils/treesitter.lua

@@ -12,34 +12,13 @@ end
 ---@param winnr? number
 ---@param ignore_injected_langs? boolean
 function M.get_node_at_cursor(cursor, winnr, ignore_injected_langs)
-  winnr = winnr or 0
-  cursor = cursor or vim.api.nvim_win_get_cursor(winnr)
-  local cursor_range = { cursor[1] - 1, cursor[2] }
-
-  local buf = vim.api.nvim_win_get_buf(winnr)
-  local root_lang_tree = parsers.get_parser(buf)
-  if not root_lang_tree then
-    return
-  end
-
-  local root
-  if ignore_injected_langs then
-    for _, tree in ipairs(root_lang_tree:trees()) do
-      local tree_root = tree:root()
-      if tree_root and ts_utils.is_in_node_range(tree_root, cursor_range[1], cursor_range[2]) then
-        root = tree_root
-        break
-      end
-    end
-  else
-    root = ts_utils.get_root_for_position(cursor_range[1], cursor_range[2], root_lang_tree)
-  end
-
-  if not root then
-    return
+  if not cursor then
+    return ts_utils.get_node_at_cursor(winnr, ignore_injected_langs)
   end
-
-  return root:named_descendant_for_range(cursor_range[1], cursor_range[2], cursor_range[1], cursor_range[2])
+  local buf = vim.api.nvim_win_get_buf(winnr or 0)
+  return vim.treesitter.get_node_at_position(buf, cursor[1] - 1, cursor[2], {
+    ignore_injections = ignore_injected_langs,
+  })
 end
 
 -- walks the tree to find a headline