Make auto attach toggle workspace settings by default

[connor4312]

Are you setting auto attach to "on" in your user settings? Note that the Toggle Auto Attach command will persist in the workspace setting by default.

Oh my. I find this a bit confusing. So if I manualy first set it in user settings you will always write it there, otherwise you would do this in the workspace settings - making the whole repository dirty. I am not a fan of automatic writing in workspace settings...

Originally posted by @isidorn in #105771 (comment)

[connor4312]

Or, we can remove the command since quick access is no longer as necessary microsoft/vscode-js-debug#732 (comment)