Hotfix/brick translation

@effkay 
- remove "localized"-method call from default scope (cause this will not be actualized when locale is changed)
- add the removed "localized"-method call to view for brick_list in kuhsaft form
- use "set_locale"-method as before_save callback instead of before_validation cause in the controller in the create method the validation is skiped and then there are records without a locale in the database
- we can also have a look at it together tomorrow