Skip ignored users during group sync

[vigen-b]

Description

Fix for #40

What's Changed

• skip ignored users when syncing groups

[Adambean]

Thanks for submitting this. I think the code is correct, spot on in fact. :) I'm checking if it's perhaps happening at the wrong place.

This change will resolve ignored users being unintentionally deleted from a user group, which is fine, though perhaps this check should happen sooner to avoid ignored users being added to a group too. I'll check what happens if your amendment is positioned at line 1874 instead, just after the check for built-in user names, as these two checks are often paired up. You could be completely correct where it already is though.

[vigen-b]

Seems it's better idea, at least user skipping would be handled in one place.

[Adambean]

This seems fine.