Warning/confirmation on logout in claim

[Gauteamus]

We generally need confirmation checkboxes for many things (e.g. leave village), so this is needed for many things.

I would like to see a confirmation window upon trying to log out in a claim, or village authority (anywhere your character cannot legally log in)
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If you log out here, your character
will have to log in at his hearthfire.

Do you want to continue? y/n
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