Overtype/Align toggle by default only active in Spin files

[Wuerfel21]

By default the overtype/align keybind has a when clause of editorFocus && editorLangId == 'spin(2)'.

However, the extension is active in all files, so if you toggled it into a different mode you can't change it back without opening a Spin file. Since the functionality isn't Spin-specific I'd just remove the editorLangId check.

[ironsheep]

I'll look at it more closely to see how to adjust this... more when I get to this.