Fix showing inactive VMs

Previously if Qubes Manager was started with inactive VMs hidden,
toggling "show inactive VMs" option wasn't enough to show them. This is
because we set RowHidden to False only when both show_inactive and
show_internal are set.
This commit fixes the issue.

qubesmanager/main.py

@@ -1036,6 +1036,8 @@ class VmManagerWindow(Ui_VmManagerWindow, QMainWindow):
                 internal = widget.vm.internal
                 if not (show_inactive or running) or not (show_internal or not internal):
                     self.table.setRowHidden(row_no, True)
+                else:
+                    self.table.setRowHidden(row_no, False)
                 row_no += 1
 
     def mark_table_for_update(self):