Use stable langage for the UI

Prevents translations from being triggered by browser language.

lib/LedgerSMB/Entity/User.pm

@@ -121,14 +121,14 @@ sub reset_password {
    return;
 }
 
-=item create
+=item create( $password, [ \%prefs ] )
 
 Creates the new user.
 
 =cut
 
 sub create {
-    my ($self, $password) = @_;
+    my ($self, $password, $prefs) = @_;
     my ($ref) = $self->call_dbmethod(
         funcname => 'admin__save_user',
         args => { password => $password });
@@ -138,6 +138,16 @@ sub create {
             funcname => 'admin__add_user_to_role',
             args => [ $self->username, $role ]);
     }
+    $prefs //= {};
+    my $query = q|insert into user_preference (user_id, name, value)
+ values ($1, $2, $3)
+ on conflict (user_id, name) do update set value = $3|;
+    my $sth = $self->dbh->prepare($query)
+        or die $self->dbh->errstr;
+    for my $pref (keys $prefs->%*) {
+        $sth->execute($self->id, $pref, $prefs->{$pref})
+            or die $sth->errstr;
+    }
     return;
 }
 

xt/lib/Pherkin/Extension/LedgerSMB.pm

@@ -237,7 +237,7 @@ sub create_user {
         username => $username,
         _dbh => $dbh,
         );
-    $user->create($args{password} // 'password');
+    $user->create($args{password} // 'password', { language => 'en' });
     my $ident_username=$dbh->quote_identifier($username);
     $dbh->do(qq(ALTER USER $ident_username VALID UNTIL 'infinity'));
 
@@ -311,7 +311,7 @@ INSERT INTO business_unit (class_id, control_code, description)
 
     my $emp = $self->create_employee(dbh => $dbh);
     my $user = $self->create_user(dbh => $dbh,
-        entity_id => $emp->entity_id,
+                                  entity_id => $emp->entity_id,
                                   username => $admin);
 
     my $roles;