fix manager-solution

Dockerfile

@@ -24,7 +24,10 @@ RUN apt-get update && \
           dbus-user-session \
           mousepad \
           x11-xserver-utils xauth \
-        && rm -rf /var/lib/apt/lists/*
+         && sed -i 's/# it_IT.UTF-8 UTF-8/it_IT.UTF-8 UTF-8/' /etc/locale.gen \
+         && locale-gen it_IT.UTF-8 \
+         && update-locale LANG=it_IT.UTF-8 LC_ALL=it_IT.UTF-8 \
+         && rm -rf /var/lib/apt/lists/*
 
 
 # Install Windows-like themes
@@ -177,6 +180,13 @@ COPY defaults/autostart /defaults/autostart
 RUN chmod +x /defaults/autostart
 
 # Set environment and entrypoint
+ENV LANG=it_IT.UTF-8
+ENV LANGUAGE=it_IT:it
+ENV LC_ALL=it_IT.UTF-8
+ENV LC_TIME=it_IT.UTF-8
+ENV TZ=Europe/Rome
+ENV JAVA_TOOL_OPTIONS="-Dosgi.nl=it_IT -Duser.language=it -Duser.country=IT -Duser.timezone=Europe/Rome -Dfile.encoding=UTF-8"
+
 ENV GTK_USE_PORTAL=1
 ENV TITLE="Fiscality"
 ENV NO_FULL=true