alr edit with VS Code opens project file instead of project directory

[yannickmoy]

Checklist

• I've included the output of alr version.
• I've included complete steps to reproduce my issue.

Describe the bug
When running alr edit with VS Code as the editor, it runs code my_project.gpr which simply opens the project file. It looks like it would be more useful to run code . to open the current project directory. WDYT?

alr version
alr 2.0.1

[mosteo]

I indeed always open with code ., I wonder if opening the .gpr file has any implication for the Ada plugin. @reznikmm, I think you'll have the answer to this.

[yannickmoy]

No effect that I can see, expect that it just opens the project file, which is typically not what you want.

[reznikmm]

Ada VS Code extension doesn't use code arguments. So it's better to execute code . instead of code ${GPR_FILE}.