Translated using Weblate (#4447)

Co-authored-by: Kevin Papst <kevin@kevinpapst.de>
Co-authored-by: Massimo Pissarello <mapi68@gmail.com>
Co-authored-by: Matti O <matt1@users.noreply.hosted.weblate.org>
Co-authored-by: Milo Ivir <mail@milotype.de>
Co-authored-by: Oğuz Ersen <oguz@ersen.moe>
Co-authored-by: Patrick Kartschewski <weblate@patrick-kartschewski.de>
Co-authored-by: Reza Almanda <rezaalmanda27@gmail.com>
Co-authored-by: Victor Hitriy <pvnhome@yandex.ru>
Co-authored-by: Wellington Terumi Uemura <wellingtonuemura@gmail.com>
Co-authored-by: Yaron Shahrabani <sh.yaron@gmail.com>
Co-authored-by: albanobattistella <albano_battistella@hotmail.com>
Co-authored-by: gallegonovato <fran-carro@hotmail.es>

translations/validators.it.xlf

@@ -12,7 +12,7 @@
       </trans-unit>
       <trans-unit id="1V6BsD_" resname="You must select at least one user or team.">
         <source>You must select at least one user or team.</source>
-        <target>Devi selezionare almeno un utente o una squadra.</target>
+        <target state="translated">Devi selezionare almeno un utente o una team.</target>
       </trans-unit>
       <trans-unit id="ePrqiLM" resname="The begin date cannot be in the future.">
         <source>The begin date cannot be in the future.</source>
@@ -64,7 +64,7 @@
       </trans-unit>
       <trans-unit id="rmH78_V" resname="At least one team leader must be assigned to the team.">
         <source>At least one team leader must be assigned to the team.</source>
-        <target>Almeno un caposquadra deve essere assegnato alla squadra.</target>
+        <target state="translated">Almeno un responsabile team deve essere assegnato al team.</target>
       </trans-unit>
       <trans-unit id="to1Q85W" resname="An activity needs to be selected.">
         <source>An activity needs to be selected.</source>