My name is Mikaela!

Thanks @nyuszika7h :) ☺
fix previous commit

I forgot core. And now to real translation.
update messages.pot files && Unix: update l10n-fi.
Aka: add l10n-fi.
NickAuth: update l10n-fi.
Admin: update l10n-fi.
Ctcp: update l10n-fi.
Topic: update l10n-fi.
Web: update l10n-fi.
Config: update l10n-fi.
Aka: fix first comment in l10n-fi.
Merge pull request #573 from Mkaysi/l10n-fi

Fix my name in old translations & update l10n-fi.