Temp files (.shm, .wal) not removed when closing VS Code tab for Viewer

[mldisibio]

Steps to reproduce:

1. Right click on folder with sqlite files.
2. Open with VS Code
3. Open sqlite file from Explorer
4. Note that shm and wal files are now visible in explorer
5. Close tab that is showing database using the View

Expected Result: shm and wal files would be removed the same as when typing .exit from the sqlite3 cli.

Actual Result: shm and wal files still present on disk

Special Note: My sqlite files are named with a .dat extension. Sqlite files can have any extension. Hopefully the behaviour described above is not driven by assumptions on the file extension names.