Dot removing in string

[Dzonny]

https://github.com/SimpleMachines/SMF/blob/6d8394d172041ca1bec3ba249f922462ace8bc78/Themes/default/languages/Profile.english.php#L408

As reported on Crowdin here: https://crowdin.com/translate/simple-machines-21-beta/29/en-pl?filter=basic&value=0#5210

There is dot in a string, and also in a code, so we have two dots shown in production. Not sure if the dot should be removed here in the string or in another place, but just reporting it here.