Is your feature request related to a problem? Please describe.
Open VSC SAS Extension base on Main branch. Create a new folder with some unsaved files, delete the created folder, it has no warning message in such kind of situation. However, it has warning for the user if do the same on VSC Explorer.

Steps to reproduce
1.Sign in with Viya connection
2.Go to SAS Content Explorter
3.Create a new folder name 'Test' under My Folder
4.Create 2 new unsaved files 'test01.sas', 'test02.sas' under folder 'Test'
5.Delete folder 'Test'

Describe the solution you'd like
It would be better to show warning message if trying to delete a folder which contains unsaved files.

Additional context