**Describe the bug** 1. When I open a saved .sdt file, the plugin shows "Open success! Method source not found, the navigation is disabled.". 2. When the js file name ends with .old.js, the plugin displays the file name as "old". <img width="507" alt="截屏2024-11-14 13 01 21" src="https://github.com/user-attachments/assets/06982ec2-99c1-4724-9cf0-9cf2123b4f00"> **Plugin & IDE info:** - Plugin Version : SequenceDiagram Core 4.0.3, SequenceDiagram JS 4.0.3 - IDE Name & Version : IntelliJ IDEA 2024.2.4 (Ultimate Edition) - Language : javascript (Flow JS)