Add "Zakładając że" keyword to polish translation

"Zakładając że" means in polish "Given that". But the main difference between Polish and English is that adding "że" completely changes the order of the sentence.
Sometimes it's more natural to use `zakładając że`, e.g. `Zakładając że jestem zalogowany jako "administrator"` (Given that I am logged in as an "administrator"). If you remove "że" from this sentence it has to become something like: `Zakładając zalogowanego użytkownika jako "administrator"` (Given there is a user logged in as a "administrator"), which in Polish sounds odd.
There is no easy way to just remove "że" as you could do in English removing "that".