Show error message when importing files that have wrong camel case name (or don't exist on disk)

[IonelLupu]

I'm submitting a feature request

• Extension Version: *

Please tell us about your environment:

• Operating System: Windows 10

• Visual studio code version: *

Current behavior:
The extension doesn't show an error when importing files that have wrong camel case name. (I guess it doesn't show an error when importing files that don't exist on disk either. Didn't test)

Expected/desired behavior:

When having a file name myStyle.scss the import should show an error when importing mystyle.scss